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Simplifying 3r + -4 = 3(r + -3) Reorder the terms: -4 + 3r = 3(r + -3) Reorder the terms: -4 + 3r = 3(-3 + r) -4 + 3r = (-3 * 3 + r * 3) -4 + 3r = (-9 + 3r) Add '-3r' to each side of the equation. -4 + 3r + -3r = -9 + 3r + -3r Combine like terms: 3r + -3r = 0 -4 + 0 = -9 + 3r + -3r -4 = -9 + 3r + -3r Combine like terms: 3r + -3r = 0 -4 = -9 + 0 -4 = -9 Solving -4 = -9 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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