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Simplifying 8 = 2 + -5r + -4 Reorder the terms: 8 = 2 + -4 + -5r Combine like terms: 2 + -4 = -2 8 = -2 + -5r Solving 8 = -2 + -5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5r' to each side of the equation. 8 + 5r = -2 + -5r + 5r Combine like terms: -5r + 5r = 0 8 + 5r = -2 + 0 8 + 5r = -2 Add '-8' to each side of the equation. 8 + -8 + 5r = -2 + -8 Combine like terms: 8 + -8 = 0 0 + 5r = -2 + -8 5r = -2 + -8 Combine like terms: -2 + -8 = -10 5r = -10 Divide each side by '5'. r = -2 Simplifying r = -2
| 38-1.7x=25+2.1x | | 3-1+(14-2)= | | -16x^2+64x-20=0 | | 5n-7=2n+14 | | n-6+4=-4 | | y=-7x-14 | | -6-7(-8-x)=x+2 | | -12=3n+3n | | 4(4-1w)=3(2w+2) | | 18x^2+42x+20=0 | | h(t)=300t-16t^2 | | 3y+12=6y | | 2(x+2)=-4(x+5) | | 6n=132 | | n(2)+7=448 | | 4.6b+26.8=50 | | 5[x-7]=5 | | -(15-7x)=57 | | -26+5b=4(7b-7)+2 | | 16-2z+1= | | 8n+3n=-11 | | 2x+4(5-3x)=3(9x-5) | | 7x-2+7x-2=2x+4 | | 4k-6-5k=-12 | | 20+2.5x=50 | | h=2a+(2n+h) | | x^2-3x+4x-3+x+8+x+9= | | 6(2x-3)=4+8(7-6x)+15 | | 4x-20+x+12= | | 1.15*2x+1.50=11.50 | | -30=2-10+11x | | 7n(2)=448 |