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Simplifying 9(r + -11) = -8(-1r + 9) + -20 Reorder the terms: 9(-11 + r) = -8(-1r + 9) + -20 (-11 * 9 + r * 9) = -8(-1r + 9) + -20 (-99 + 9r) = -8(-1r + 9) + -20 Reorder the terms: -99 + 9r = -8(9 + -1r) + -20 -99 + 9r = (9 * -8 + -1r * -8) + -20 -99 + 9r = (-72 + 8r) + -20 Reorder the terms: -99 + 9r = -72 + -20 + 8r Combine like terms: -72 + -20 = -92 -99 + 9r = -92 + 8r Solving -99 + 9r = -92 + 8r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-8r' to each side of the equation. -99 + 9r + -8r = -92 + 8r + -8r Combine like terms: 9r + -8r = 1r -99 + 1r = -92 + 8r + -8r Combine like terms: 8r + -8r = 0 -99 + 1r = -92 + 0 -99 + 1r = -92 Add '99' to each side of the equation. -99 + 99 + 1r = -92 + 99 Combine like terms: -99 + 99 = 0 0 + 1r = -92 + 99 1r = -92 + 99 Combine like terms: -92 + 99 = 7 1r = 7 Divide each side by '1'. r = 7 Simplifying r = 7
| f(x)=14-3x | | X^2-X(5X+X)+20=5 | | 2=U/4-13 | | 0.26x=6.2 | | 17.63-15.9w=-17.33-18.2w | | 2z-4-4=4 | | X/5-12=1 | | X=(7/3-1/3y)-5 | | -8(-2t-8)=-6+12t | | Y=(7/3-1/3x)-5 | | 52=4v+12 | | 24x-12=24x-16+4 | | -3z-14-11z=-7(-5z-19) | | 4x-9x^4/9 | | 1+2x=6x+14 | | 3+3x-14+4=10 | | 7(6x+-27)=X+27 | | 5(9y-12)=3(4y-9) | | -2=7-log(7)4-x^3 | | 1x+2=6+14x | | -2(x+8)=.3(3x+15) | | 1+2x=6+14x | | -7.5n=18.92-6.4n | | 1+2=6+14 | | 13.4+4.2q=-7.5q+7.5q-18.1 | | 1x+2=6x+14 | | 5.85-11.8v=-12.1v | | 9w=6120 | | X/13-5=5 | | 5.85-11.8v=-13.1v | | 158=-0.033x+234 | | k/2=3 |