3x+2y=-3;x=21-8y

Simple and best practice solution for 3x+2y=-3;x=21-8y. 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 3x+2y=-3;x=21-8y system of equations:


  • /| 3*x+2*y+3 = 0| x+8*y-21 = 0
  • We try to solve the equation: 3*x+2*y+3 = 0
  • 3*x+2*y+3 = 0 / - 3*x+3
  • 2*y = -(3*x+3) / : 2
  • y = (-(3*x+3))/2
  • We insert the solution into one of the initial equations of our system of equations
  • We get a system of equations:
  • /| 8*((-(3*x+3))/2)+x-21 = 0| y = (-(3*x+3))/2
  • (8*(-3*x-3))/2+x-21 = 0
  • -11*x-21-12 = 0
  • -11*x-33 = 0
  • -11*x-33 = 0 / + 33
  • -11*x = 33 / : -11
  • x = 33/(-11)
  • x = -3
  • We insert the solution into one of the initial equations of our system of equations
  • For y = (-(3*x+3))/2:
  • y = (-(3-3*3))/2
  • y = (-(3-9))/2
  • y = 6/2
  • y = 3
  • We get a system of equations:
  • /| y = 3| x = -3

You can always share this solution

See similar systems of equations:

| 5x-y=27;x+y=9 | | 36x-4y=16;y=9x+4 | | -15x-10y=1;15y=1+10x | | 3x+7y=9;x=2-2y | | 2x+y=8;y=2x | | x-2y=10;x | | x+y=2;x-y=2 | | 7x-y=27;9x-4y=3 | | 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 |

Equations solver categories



Related pages


greatest common factor of 120greatest common factor of 1203y 2x117tsimplify calculator with steps3.25 as a fractionsin 2xcos 2xcosx cosx sinx520-360differentiate e 3xsolve 3x3what is 85 as a fraction in simplest formf15fsin 6x6r128y 2y-3 9y arcsin xprime factorization for 12645-1204x 5y1961 roman numeralsgcf of 98write 0.625 as a fraction in simplest formfind the prime factorization of 85solve 3x 15250-270320-2562001 roman numeralsx 2-16 factoredwhat is the square root of 1089derivative of ln5adding mixed numbers and fractions calculator5000 pounds in nairaprime factorization for 46prime factorization 150what is the gcf of 64 and 88what are the factors of 6x 6prime factorization of 162is 185 a prime numberxe x derivative9u8simplify sin 2xderivative ln 3xfinding solutions to equations calculator60 x3prime factor tree of 546x 2x 1graph x 2y 10graph of 2x 1greatest common monomial factor calculatorhow to solve prime factorizationwhat is prime factorization of 49sin2x cos2x 0fraction dividing calculator14x2factorise a 2 b 2prime factorization for 745x-7 2-4xsin 2x 3cos 2xgraph y 3x 4prime factorization of 112csc2x 1convert percent to a decimal calculatorprime factorization of 59gcf of 147how do you write 20 as a decimalsquare root of 22095x squared225-812x 5y 0prime factorization 68timesing fractions calculatorgcf calcgraph 3x y 2common multiples of 15 and 25lcm of 913.125 as a fractionthe derivative of tanx