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Simplifying 3r + 4 = r + 2(-1r + 8) Reorder the terms: 4 + 3r = r + 2(-1r + 8) Reorder the terms: 4 + 3r = r + 2(8 + -1r) 4 + 3r = r + (8 * 2 + -1r * 2) 4 + 3r = r + (16 + -2r) Reorder the terms: 4 + 3r = 16 + r + -2r Combine like terms: r + -2r = -1r 4 + 3r = 16 + -1r Solving 4 + 3r = 16 + -1r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add 'r' to each side of the equation. 4 + 3r + r = 16 + -1r + r Combine like terms: 3r + r = 4r 4 + 4r = 16 + -1r + r Combine like terms: -1r + r = 0 4 + 4r = 16 + 0 4 + 4r = 16 Add '-4' to each side of the equation. 4 + -4 + 4r = 16 + -4 Combine like terms: 4 + -4 = 0 0 + 4r = 16 + -4 4r = 16 + -4 Combine like terms: 16 + -4 = 12 4r = 12 Divide each side by '4'. r = 3 Simplifying r = 3
| 4x=4-1 | | n+10(5)=9-n | | x+82+x+75=41 | | 5x-8(x+5)=1.44-3x | | 4=4x-1 | | x+135+x+35=20 | | -3+5(4+6n)=107 | | 4-6(k+7)=5k+17 | | p-6=3(p-4) | | 8+6(t+2)=32 | | 8-6m=26 | | 8m-7(3-5m)=280 | | -12-2k=-2(k+4) | | x+135+20=x+35 | | 3(x+6)=221 | | x+40+2x-10=180 | | 1.4b+10=18 | | 34+8m=6(3m+1)-3m | | -4(2x-1)=2(3x+2)-14x | | 2a-6+5a=3-a+7 | | 3+7(-3n+6)=-4n-6 | | -6(z-2)=3 | | 17+(-3x)=14 | | 2x-10-7x=3(x-6) | | 6(7-6n)=114 | | 7(5x-4)=5+2x | | n^2+(-3)(4)=28 | | 17+(-3)=14 | | 5+X=-36 | | 2y+7=35 | | h=16t^2+52t+16 | | 4.95+11.95=64.70 |