7x-y=27;9x-4y=3

Simple and best practice solution for 7x-y=27;9x-4y=3. Check how easy it is, to solve this system of equations and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the system of equations solver your own equations and let us solve it.
Remember to put linear equations with variables x and y.
for example:
2x+y=8
x+3y=14

Solution for 7x-y=27;9x-4y=3 system of equations:


  • /| 7*x-y-27 = 0| 9*x-(4*y)-3 = 0
  • We try to solve the equation: 7*x-y-27 = 0
  • 7*x-y-27 = 0 / - 7*x-27
  • -y = -(7*x-27) / * -1
  • y = 7*x-27
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 9*x-(4*(7*x-27))-3 = 0| y = 7*x-27
  • 9*x-1*4*(7*x-27)-3 = 0
  • 108-19*x-3 = 0
  • 105-19*x = 0
  • 105-19*x = 0 / - 105
  • -19*x = -105 / : -19
  • x = -105/(-19)
  • x = 105/19
  • We insert the solution into one of the initial equations of our system of equations
  • For y = 7*x-27:
  • y = 105/19*7-27
  • y = 735/19-27
  • y = 222/19
  • We get a system of equations:
  • /| y = 222/19| x = 105/19

You can always share this solution

See similar systems of equations:

| x+y=480;x-y=400 | | 3x+2y=78.39;2x+3y=74.61 | | 11x+15y=6912;-11x-11y=-6336 | | 1.6x+1.6y=160;x-y=10 | | y=-1/2x-5;6x-2y=24 | | x+y=4;y-x=4 | | 5x=22-y;7x=35+2y | | 3x=12+2y;-6/5x+y=-9/5 | | 3x+2y=0;12x+2=6y | | 2x-5y=-9;5x+2y=50 | | x+y=4;x+y=-2 | | 7x-y=41;x+5y=47 | | 2x-y=7;9y=2x-31 | | x+y=11;6x-y=10 | | 0.1x+0.5y=-0.8;0.8x-0.6y=7.4 | | 1/3x+1/2y=1/6;1/3x+2y=5/3 | | 16x-10y=4;8x=5y+2 | | 15x-20y=7;10y=-3+5x | | x=5y-5;-2x+10y=10 | | 5x-27=-y;4x-y=0 | | 5x-27=-1y;4x-1y=0 | | 4x+5y=3;x=3-2y | | 6x+2y=10;12x+4y=21 | | x+y=5;3x+2y=10 | | -12x+14z=-14;-14x-14z=98 | | a+s=456;350a+100s=113100 | | a+s=456;3.5a+100s=1131 | | 4a+1b=15.5;3a+2b=14.75 | | 8n=-3m+1;8(-2)=-3m+1 | | y-3x=-2;6x-2y=4 | | x+y=20;x-y=4 | | 2x+3y=1;-3x-2y=-1 | | y=3x-6;y=5x-14 | | x+4y=1;5x+4y=-11 | | 2x-2y=-2;y=4x-5 | | 6x+y=-3;5x-3y=-83 | | 2x+3y=7;3x-3y=18 | | -7x-3y=-25;-6x-4y=-20 | | 8x+y=29;8x+4y=20 | | x+8y=28;2x+5y=12 | | 4x+3y=40;x=2y-1 | | x+y=12;x=2y | | 3x+3y=10;-9x-9y=-30 | | 7y+2y^2-7;3-4y | | 0,5x+0,2y=17;x+y=17 | | x-4y=5;-x+2y=-3 | | 4x+3y=30;x=5y-4 | | 2g+3h=6;-g+5h=-16 | | 5a+b=1;-3a-7b=25 | | 5e+3f=-23;-3e-7f=19 | | 6v+7w=-50;-v+3w=0 | | 6x+5y=-16;-6x-7y=8 | | -3c+5d=-43;-3c-7d=17 | | 5m+6n=62;15m-n=53 | | 8p+5q=62;6p-5q=-6 | | 5a-6b=12;10a-7b=39 | | 5a-6b=12;10a-7b+39 | | 6x-5y=1;18x+y=115 | | 8m-7n=-41;16n+m=23 | | 7p+5q=58;14p-q=50 | | 5a-b=10;2a+b=11 | | 5x+3y=38;15x-4y=101 | | 3x-y=16;x-4y=16 | | x+7y=0;2x8y=12 | | x+7y=0;6x-5y=12 |

Equations solver categories



Related pages


simplify square root of 300expressions and equations calculator5pi2r 3sprime factorization 5888.1.3square root 676what is the derivative of xe xwhat is the prime factorization of 675mcmlv in roman numeralsln x 2 derivativewhat is the prime factorization of 84derivative of 2x 1greatest common factor generator1921 in roman numeralslog3x 3roman numeral 73quadratic equation solver with stepsderivative of ln x squaredthe prime factorization of 54724.5x 3 sqrt 1-x 2200-168decimal inches to fraction calculator8y y784.002.7.4cotg xy m x bcosxcosy sinxsiny5x 4yprime factorization 40least common denominator calculator algebraderivative of 2 ln xsolve 2sinx-1 0180-126what is the prime factorization of 210prime factorization of 104simultaneous equations calculator with stepsleast common denominator fractions calculatorfactors of72mixed fraction calculator step by stepfind least common denominator calculatorexpressions calculator with stepsfactor 3x 2-7x-6682.6prime factorization of 110convert percent to fraction calculator130 in roman numeralsquare root of 3.241985 roman numeralsfactor by gcfln19logbthe prime factorization of 175whats the prime factorization of 52how to solve fractions on a calculatorhow to factor gcfwhat is the prime factorization of 825derivative of ln tanxhow to graph x 2y 4what is the prime factorization of 400derivative of ln2x1818184x 2-25what is the prime factorization of 164cot 2agraph 3x 2y 80.09375 as a fractionx 2 xy y 2 graphsolve x 2 2xmeasuredsuccess com1.9 inches to fraction2y 4x 8e 3lnxx squared 4xmultiplying fractions with variables calculatorwhat is the prime factorization of 135whats 7x8