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Simplifying 7x + -9 + -4(x + -1) = 28 Reorder the terms: 7x + -9 + -4(-1 + x) = 28 7x + -9 + (-1 * -4 + x * -4) = 28 7x + -9 + (4 + -4x) = 28 Reorder the terms: -9 + 4 + 7x + -4x = 28 Combine like terms: -9 + 4 = -5 -5 + 7x + -4x = 28 Combine like terms: 7x + -4x = 3x -5 + 3x = 28 Solving -5 + 3x = 28 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 3x = 28 + 5 Combine like terms: -5 + 5 = 0 0 + 3x = 28 + 5 3x = 28 + 5 Combine like terms: 28 + 5 = 33 3x = 33 Divide each side by '3'. x = 11 Simplifying x = 11

| 27-x=62 | | (1/x)=(x/6)-(5/60) | | 2x-8+2x+5+30-3x=25 | | 256=2x^2 | | y+23=51 | | 113=-8(5m+6)+1 | | 2sin(4x)cos(x)=0 | | x*.88=15000 | | 4+6x=-16+x | | d=22.5+27.5 | | 138=6(2k-1)+6k | | -2/396x-270=-4 | | 205=-5(-5a-6) | | 3-m=9 | | 5x+1=126 | | 5(1+5a)=180 | | m-9=23 | | -175=5(7+7x) | | x-.22=15000 | | (5x-2)(3x+5)=0 | | 130=-5(5b+4) | | (5x)=(6x-10) | | 7x+5(6-3x)=94 | | x^2-4=5x^2-12x-4 | | 6(d+1)=7 | | 97=7(1+b)+8b | | 3y^2-2y+x+1=0 | | 3x^3+3x-5=0 | | -2n-6(1+6n)=222 | | 64x+8=10 | | -90=7(-2n+2)+8 | | -9x-21=-12x-1 | | 3-(5x+1)=8x+(4-2x) | | 10x^2-8x-13=0 | | 5(w+10)=-5w+50 | | 2(-6x-2)=-100 | | 6x^2-2kx+k=0 | | 20X+40Y=4000 | | -2(1+4x)-5x=102 | | 12x^4-3x^2= | | -x^2+17x-23=0 | | 30k^2+3k-6=0 | | 27x-x^3=0 | | 98=-7n-2(-5+2n) | | -33=-v-10v | | 6t-64=14t | | 60x-56=175x+105 | | 3x-38= | | -76-7c=12c+95 | | 5k^2-2k+8=0 | | 1/2=?/6 | | X+3x=14 | | 3[2x+5]=25+x | | 8v^2-16v-24=0 | | n^2+2n=15 | | 5x+7x+1=0 | | 2[x+3]=14+x | | 3.5=m-4 | | r^2+13r+40=p | | 5(w+2)=-5w+50 | | 7x+25=48 | | 4x-5=7x+2x | | 5+65x=52x | | e^4=12x | | x+0.2x=66 |

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