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Simplifying 3x + -7(x + -1) = -3(2x + 3) Reorder the terms: 3x + -7(-1 + x) = -3(2x + 3) 3x + (-1 * -7 + x * -7) = -3(2x + 3) 3x + (7 + -7x) = -3(2x + 3) Reorder the terms: 7 + 3x + -7x = -3(2x + 3) Combine like terms: 3x + -7x = -4x 7 + -4x = -3(2x + 3) Reorder the terms: 7 + -4x = -3(3 + 2x) 7 + -4x = (3 * -3 + 2x * -3) 7 + -4x = (-9 + -6x) Solving 7 + -4x = -9 + -6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6x' to each side of the equation. 7 + -4x + 6x = -9 + -6x + 6x Combine like terms: -4x + 6x = 2x 7 + 2x = -9 + -6x + 6x Combine like terms: -6x + 6x = 0 7 + 2x = -9 + 0 7 + 2x = -9 Add '-7' to each side of the equation. 7 + -7 + 2x = -9 + -7 Combine like terms: 7 + -7 = 0 0 + 2x = -9 + -7 2x = -9 + -7 Combine like terms: -9 + -7 = -16 2x = -16 Divide each side by '2'. x = -8 Simplifying x = -8
| 4x+3y+y= | | 5n^2+n-4= | | 2a^2+11a+9= | | 0.25t^2-4.556t-7.7452=0 | | 7a^2+10a+3= | | 5y^2+12y+7= | | 5x=7-3(x-3) | | -4x+20=36 | | x^2+12x=33 | | 3x-2=6x+4 | | 21x-6=19x | | 4(2+x)=-3(x-5) | | -x+3(x+2)=1 | | a^2+9a+18= | | 5(x+1)-15=0 | | 8-4x=43 | | s^2+9s+20= | | 6x+6=46 | | y^2-2y-15= | | 40-3x=50-8x | | y^2+6y-27= | | y^2+11+18= | | 5x-7y=8 | | 2x+29=9x-41 | | 2x^2-7x-30=00 | | 7n=2n+4 | | 20-8x+30-16x=180 | | 20-8x=30-6x | | 25+0=25 | | s^2+12s+36= | | x^2+10x+100= | | -2(-3+2x)=5 |