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how do i solve -3r+3r=-6(7+7r)-7(4-7r)
r - 10 + 100 - 3r = -2r + 90
(3r + 2)(r - 5)
(3r + 18)/12 = (4r - 48)/4Multiply both sides by 12: (3r + 18) = 3*(4r - 48)or: 3r + 18 = 12r - 144Subtract 3r from both sides: 18 = 9r - 144Add 144 to both sides: 162 = 9rDivide both sides by 9: 18 = rAnswer: r = 18
3r - 9r = 18 wright equaton -6r = 18 combine like terms r = -3 solve