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Simplifying 8x + -1(12 + 3x) + 7 = -2 + 2x + -1(7 + -1x) 8x + (12 * -1 + 3x * -1) + 7 = -2 + 2x + -1(7 + -1x) 8x + (-12 + -3x) + 7 = -2 + 2x + -1(7 + -1x) Reorder the terms: -12 + 7 + 8x + -3x = -2 + 2x + -1(7 + -1x) Combine like terms: -12 + 7 = -5 -5 + 8x + -3x = -2 + 2x + -1(7 + -1x) Combine like terms: 8x + -3x = 5x -5 + 5x = -2 + 2x + -1(7 + -1x) -5 + 5x = -2 + 2x + (7 * -1 + -1x * -1) -5 + 5x = -2 + 2x + (-7 + 1x) Reorder the terms: -5 + 5x = -2 + -7 + 2x + 1x Combine like terms: -2 + -7 = -9 -5 + 5x = -9 + 2x + 1x Combine like terms: 2x + 1x = 3x -5 + 5x = -9 + 3x Solving -5 + 5x = -9 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -5 + 5x + -3x = -9 + 3x + -3x Combine like terms: 5x + -3x = 2x -5 + 2x = -9 + 3x + -3x Combine like terms: 3x + -3x = 0 -5 + 2x = -9 + 0 -5 + 2x = -9 Add '5' to each side of the equation. -5 + 5 + 2x = -9 + 5 Combine like terms: -5 + 5 = 0 0 + 2x = -9 + 5 2x = -9 + 5 Combine like terms: -9 + 5 = -4 2x = -4 Divide each side by '2'. x = -2 Simplifying x = -2
| 50m^2-20m-2=0 | | 5(5+3x)=205 | | 2(-2t+7)-2t=18-6t+7 | | 4(5+2x)=44 | | 6(6w+2)-16w=20w+12 | | (2x-1)(5x+1)=0 | | m^2-4m+4=36 | | 24tan^2x-10tanx=4 | | 2x-(10x^2+9x)= | | -5x-12=-2 | | -10.9+16.5b-14.75=2.3b-19.97 | | 7(8+5x)=476 | | x+6+x+6=10x-12 | | -19.5h+19.8h=0.3h | | y-4=-2(x+4) | | 7-2b=10-3b | | -2x^2+9=1 | | 6(5x+1)=216 | | 5.4d=16.83+6.3d | | 13=16+3x | | 0.14x+0.21=1.05 | | 8-6x=32-6x | | 2x+4y=132 | | 6x-7=4(x+12) | | 4(7x+6)=220 | | 10.49-10.1c+15.9c=4.48+5.8c | | 5w=18+2y | | 4(1+3x)=76 | | 10+-1x=4 | | x=2(11-x)+14 | | x=2(11-x)+4 | | -14.5z-0.26=-0.26-14.5z |