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Simplifying -9 = 4r Solving -9 = 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. -9 + -4r = 4r + -4r Combine like terms: 4r + -4r = 0 -9 + -4r = 0 Add '9' to each side of the equation. -9 + 9 + -4r = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -4r = 0 + 9 -4r = 0 + 9 Combine like terms: 0 + 9 = 9 -4r = 9 Divide each side by '-4'. r = -2.25 Simplifying r = -2.25
| X+5=-(4x+4) | | -20=x-17 | | x+19=-4 | | 7x(2x-3)=4x(12-3) | | -9=7s+32 | | 25y+7y^2=12 | | 107-6x=12x+15 | | 6(5g-9999)=7g | | 5x+2=7x-7 | | 3/4(x+2)=5 | | 3/5(x+2)=5 | | 3.5(x+2)=5 | | 4a-3=12 | | 6x+30+4x=10x(x+3) | | 2a+4=7 | | 49=28+63y | | 40+4y-16=13Y-12-13y | | 12x*x+5x+4=125 | | .31=1.49-(x+.2) | | 28y+21=63 | | 0=40-10x | | 10(b-1)+3=83 | | 2(p-2)+4=14 | | 9(n+1)-1=17 | | 5(m-4)+2=32 | | x(x-7)=19+x^2 | | 4(y-3)+3=23 | | 6(x+1)+1=25 | | 10(b-1)=90 | | 2(p-2)=2 | | 9(n+1)=27 | | 5(m-4)=20 |