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Simplifying 7 + -1r = 8 + -1r + -1r Combine like terms: -1r + -1r = -2r 7 + -1r = 8 + -2r Solving 7 + -1r = 8 + -2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2r' to each side of the equation. 7 + -1r + 2r = 8 + -2r + 2r Combine like terms: -1r + 2r = 1r 7 + 1r = 8 + -2r + 2r Combine like terms: -2r + 2r = 0 7 + 1r = 8 + 0 7 + 1r = 8 Add '-7' to each side of the equation. 7 + -7 + 1r = 8 + -7 Combine like terms: 7 + -7 = 0 0 + 1r = 8 + -7 1r = 8 + -7 Combine like terms: 8 + -7 = 1 1r = 1 Divide each side by '1'. r = 1 Simplifying r = 1
| s=w/2-wy/t | | 6+c+c=19 | | 12-(5m+3)=3+4m-12 | | 2(x+1)-6=3x-23 | | 3n-6+6n+4=8+3n+2 | | -0.4x^3+4x^2-450=0 | | .21m+525=585+.13m | | 3-8x+4=6-3x+7-11x | | -0.4x^3+4x^2=450 | | 2x+17+2x-2=57-2x+30 | | 2-7y+5=2y+11-7y | | 4x^2-0.4x^3=450 | | 9gal=floz | | 3y-13-5y=2y-4-13y | | x^2y-4y-3x=0 | | -0.8x^2+2.4x+6=0 | | 47-12=x*14 | | 21x^2=-17x-2 | | 27a=5 | | -(2t+7)+3(2t+6)-2t= | | g(b+8)=7x-6 | | 3x-15=-2x | | 585.00+0.13=850 | | 585.00+0.23=850 | | 0.21m+525.00=850 | | 2x^2+9x-64= | | 3+3(2y-3)-3(4y+2)-9= | | -8q^6/4q^2 | | 2x^2-7x+25= | | 4+3(2r-6)-3(4r+6)-9= | | 5y(2y-3)+(2y+3)= | | -7a=-10a-45 |