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Simplifying 5(2x + 21) = 7(8x + -31) Reorder the terms: 5(21 + 2x) = 7(8x + -31) (21 * 5 + 2x * 5) = 7(8x + -31) (105 + 10x) = 7(8x + -31) Reorder the terms: 105 + 10x = 7(-31 + 8x) 105 + 10x = (-31 * 7 + 8x * 7) 105 + 10x = (-217 + 56x) Solving 105 + 10x = -217 + 56x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-56x' to each side of the equation. 105 + 10x + -56x = -217 + 56x + -56x Combine like terms: 10x + -56x = -46x 105 + -46x = -217 + 56x + -56x Combine like terms: 56x + -56x = 0 105 + -46x = -217 + 0 105 + -46x = -217 Add '-105' to each side of the equation. 105 + -105 + -46x = -217 + -105 Combine like terms: 105 + -105 = 0 0 + -46x = -217 + -105 -46x = -217 + -105 Combine like terms: -217 + -105 = -322 -46x = -322 Divide each side by '-46'. x = 7 Simplifying x = 7
| -27w=81 | | 14+6x=44 | | -m=13 | | -5*(-6+7)= | | 5x+18=7x+24 | | 210=2(63)+2w | | (X^3)(x^3)= | | 5x+19=2(2x+6) | | 4cos^2x-4sin^2x=0 | | 2x+20=8x-1 | | 173=v+6 | | -5*(6+7)= | | x-52=2x+24 | | X+x+22=80 | | 6x-2x+7=x-8+15 | | -3/5=x-2/5 | | 2x^2-14x+10= | | 6y^2+20y-336=0 | | 3+(-9)-(-20)= | | -2x+2=-7x+7 | | 7x-7=x+2 | | 17x+-13=72 | | 3x=-1/4 | | 28716.3467=1.33333333333(3.14*r^3) | | 7a-2-(a+7)= | | 2x=67+3 | | 4*5=d | | 2-2=a | | x^3+7x^2-30x=16 | | 65416.6667=1.33333333333*3.14*r^3 | | 4(2x+5)=3x+10 | | 28716.3467=1.33333333333*3.14*r^3 |