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Simplifying -4 + 3(1 + -2r) = 3(5 + -2r) -4 + (1 * 3 + -2r * 3) = 3(5 + -2r) -4 + (3 + -6r) = 3(5 + -2r) Combine like terms: -4 + 3 = -1 -1 + -6r = 3(5 + -2r) -1 + -6r = (5 * 3 + -2r * 3) -1 + -6r = (15 + -6r) Add '6r' to each side of the equation. -1 + -6r + 6r = 15 + -6r + 6r Combine like terms: -6r + 6r = 0 -1 + 0 = 15 + -6r + 6r -1 = 15 + -6r + 6r Combine like terms: -6r + 6r = 0 -1 = 15 + 0 -1 = 15 Solving -1 = 15 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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