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Simplifying 20 = -4r Solving 20 = -4r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4r' to each side of the equation. 20 + 4r = -4r + 4r Combine like terms: -4r + 4r = 0 20 + 4r = 0 Add '-20' to each side of the equation. 20 + -20 + 4r = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 4r = 0 + -20 4r = 0 + -20 Combine like terms: 0 + -20 = -20 4r = -20 Divide each side by '4'. r = -5 Simplifying r = -5
| 5z+3=Z-4 | | 5u-69=u+87 | | 4x^2+3y=34 | | 16=x-3 | | h=-12t+72t | | 10y=-10+9y | | 5x^2+10x-3= | | (9c-2d)(9c-2d)= | | 2x=3x+60 | | 2j=8+3j | | 5(2r-3)=9r+8 | | -5+b=-1 | | 2x-2y=3x+10y | | 6x-74=5x-61 | | 6x-4(5x-2)=3-12 | | 5x-61=6z-74 | | 3(6-x)+2(-x+4)=-4x+29 | | 4s-39=77 | | .32x+x=71536 | | .025x+30=.010(x+30) | | ((x*x)+(x*6))=3 | | 9u+64=3u+100 | | 36N-18=18 | | -10y-6=-7y | | -2=n-18 | | Coax=-.9 | | 9-4+7+4b+10b+2+20-14b=-(2-16)+6b+3+2b+20-14b | | 5z=10z-45 | | 3x=702 | | 9-4+7+4b+10b+2+20+14b=-(2-16)+6b+3+2b+20-14b | | 3=702 | | 6x=816 |