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Simplifying 7r + -8 + 2r = 100 Reorder the terms: -8 + 7r + 2r = 100 Combine like terms: 7r + 2r = 9r -8 + 9r = 100 Solving -8 + 9r = 100 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + 9r = 100 + 8 Combine like terms: -8 + 8 = 0 0 + 9r = 100 + 8 9r = 100 + 8 Combine like terms: 100 + 8 = 108 9r = 108 Divide each side by '9'. r = 12 Simplifying r = 12
| 0.10(6+5.00)=u | | 0.10(u+5.00)=2.40 | | 0.10(u+5.00)=2.00 | | 121x^2-5=164 | | 3x+4-x+2=26 | | -2/9x-12=4 | | 625/x=100 | | 4+5(x+2)=7(x+2)-2x | | y=-1+-2x+-3x^2 | | 1.00/2.00(r-0.25)=0.50 | | 3/7t=39 | | 3/7*7=39 | | x+7/15=x/6 | | x/20-(-6)=14 | | 14c=2(14+c)-4 | | m^7p^2/m^3p^6 | | 3(k-2)=2(3k+3) | | x/7.25=4 | | 3/8t*7/t^6 | | 4/3x=2/4 | | -6w-8=24 | | 6n^2-18n-16=6 | | -2+.50z=8 | | v+5v=9 | | -3v+6=15 | | 2h-2=4h | | -13=2p+10 | | -4=2p | | 3(m+2)=6 | | x^2+y^2+2x-8y+3k=0 | | a+18=40 | | 4+2y=3y-5 |