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Simplifying 4r + -2 = 2r + 12 Reorder the terms: -2 + 4r = 2r + 12 Reorder the terms: -2 + 4r = 12 + 2r Solving -2 + 4r = 12 + 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. -2 + 4r + -2r = 12 + 2r + -2r Combine like terms: 4r + -2r = 2r -2 + 2r = 12 + 2r + -2r Combine like terms: 2r + -2r = 0 -2 + 2r = 12 + 0 -2 + 2r = 12 Add '2' to each side of the equation. -2 + 2 + 2r = 12 + 2 Combine like terms: -2 + 2 = 0 0 + 2r = 12 + 2 2r = 12 + 2 Combine like terms: 12 + 2 = 14 2r = 14 Divide each side by '2'. r = 7 Simplifying r = 7
| 5/9y=20 | | 4r-2=4 | | -6+7x=2x+39 | | 7(-2x+7)=21 | | 6(y-3)=2(y-1)-8y | | 32x=25.5 | | 2(4c-1)=22 | | 2r+12=3r+8 | | -7(-6x+5)=-203 | | -3(1+6x)=-219 | | 4x+9=-18-5x | | 145*200,00/X=8.57 | | 82345372459837593845693745236544578989050390904504478097807890789049457890457890347890452789045789057890234787890043478904789053478907890347890789078905789053789035*578978978785787457890457890590787890457890457890567890578904577247744890478427845789789435 | | 82345372459837593845693745236544578989050390904504478097807890789049457890457890347890452789045789057890234787890043478904789053478907890347890789078905789053789035*578978978785787457890457890590787890457890457890567890578904577247744890478427845789789435 | | 82345372459837593845693745236544578989050390904504478097807890789049457890457890347890452789045789057890234787890043478904789053478907890347890789078905789053789035*578978978785787457890457890590787890457890457890567890578904577247744890478427845789789435 | | 82345372459837593845693745236544578989050390904504478097807890789049457890457890347890452789045789057890234787890043478904789053478907890347890789078905789053789035*578978978785787457890457890590787890457890457890567890578904577247744890478427845789789435 | | 2x^2+7x+3=7 | | y=ln(2x^2-7x) | | -4+4x=7x-19 | | r/5-4=-3 | | l+m=5 | | 20/13=60/c | | 40-2x=7x-5 | | 11x^0= | | 7m+1=15 | | 5(8+d)=45 | | 3+3x+2x=13 | | x=-(8)/2(-4) | | 10/b=15/24 | | 27+y=9 | | -18-6k=8(1+3k) | | -6x+18+5x=30 |