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Simplifying 2r + 50 = 7r + 30 Reorder the terms: 50 + 2r = 7r + 30 Reorder the terms: 50 + 2r = 30 + 7r Solving 50 + 2r = 30 + 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. 50 + 2r + -7r = 30 + 7r + -7r Combine like terms: 2r + -7r = -5r 50 + -5r = 30 + 7r + -7r Combine like terms: 7r + -7r = 0 50 + -5r = 30 + 0 50 + -5r = 30 Add '-50' to each side of the equation. 50 + -50 + -5r = 30 + -50 Combine like terms: 50 + -50 = 0 0 + -5r = 30 + -50 -5r = 30 + -50 Combine like terms: 30 + -50 = -20 -5r = -20 Divide each side by '-5'. r = 4 Simplifying r = 4
| 3y+2=2y+9 | | 21m+9=14-21m | | 3n+8=5n+2 | | 1.33y+2=4y-4 | | 4t+6=13+2t | | 10x+8=4x+44 | | 4x+6=190 | | 0.66y+3=0.33y+6 | | c=9+17*2000 | | 6=17+x | | 2x-1=143 | | x^2-2x=5x-2 | | 3x-4=1.25x+3 | | 15=4+x | | 2x-1=144 | | x+y=40 | | x^2-4x-18=3 | | x+3=1.5x+2 | | -2(-5)-8(7)= | | 5p+12.5p=62.50 | | 2y-1=3y-5 | | -2(-3)-8(7)= | | -17+x=-8 | | 5p+12.50=62.50 | | 2x+1=x+7 | | -4+x=-7 | | -2(-3)-8(5)= | | 12-.17x=-5x | | 3y-8=y+5 | | 2(-3)+2(5)= | | 2(-5)+2(7)= | | x+y=14 |