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Simplifying -7x + 3(2x + -7) = -15 + -7x Reorder the terms: -7x + 3(-7 + 2x) = -15 + -7x -7x + (-7 * 3 + 2x * 3) = -15 + -7x -7x + (-21 + 6x) = -15 + -7x Reorder the terms: -21 + -7x + 6x = -15 + -7x Combine like terms: -7x + 6x = -1x -21 + -1x = -15 + -7x Solving -21 + -1x = -15 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. -21 + -1x + 7x = -15 + -7x + 7x Combine like terms: -1x + 7x = 6x -21 + 6x = -15 + -7x + 7x Combine like terms: -7x + 7x = 0 -21 + 6x = -15 + 0 -21 + 6x = -15 Add '21' to each side of the equation. -21 + 21 + 6x = -15 + 21 Combine like terms: -21 + 21 = 0 0 + 6x = -15 + 21 6x = -15 + 21 Combine like terms: -15 + 21 = 6 6x = 6 Divide each side by '6'. x = 1 Simplifying x = 1
| 8-(3+6)=6-9 | | 20=n-10 | | 5/(3x-2)=2/(x+3) | | 1/2x-9=-25 | | 18-4-9-4= | | 0.04(3t-7)=0.12(t-1)-0.16 | | -3y+4=2(3y+4) | | -0.09(9.2)= | | x^2+6x+8=-2x^2+4 | | 11=k/16 | | (-j+8)1/2 | | (1+1)10=(x)3+6 | | -2.4(-9)= | | -6u+7n=-29 | | x*6.5=2 | | -3a+4+9a=6a-2a | | 6(5r-7)+5=19+2r | | 5/7(x+1)=1/28(x+7) | | 56=14b | | x*4=2 | | -0.08(6.2)= | | 10x+5+0=2x+3x+80 | | 10--3= | | x^2+6x+8=-2x+4 | | 56=6(3m-1) | | 5x+7(y+3)=-5 | | -1/5+2d=47 | | 5/7(1) | | 3x+2x+20=10x+5 | | -6.2(-9)= | | -3-9(-4x)=-4x+5 | | 5(2u+3)=2(u-3)+6 |