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Simplifying -7(r + -1) + -5r = -6(4 + 2r) Reorder the terms: -7(-1 + r) + -5r = -6(4 + 2r) (-1 * -7 + r * -7) + -5r = -6(4 + 2r) (7 + -7r) + -5r = -6(4 + 2r) Combine like terms: -7r + -5r = -12r 7 + -12r = -6(4 + 2r) 7 + -12r = (4 * -6 + 2r * -6) 7 + -12r = (-24 + -12r) Add '12r' to each side of the equation. 7 + -12r + 12r = -24 + -12r + 12r Combine like terms: -12r + 12r = 0 7 + 0 = -24 + -12r + 12r 7 = -24 + -12r + 12r Combine like terms: -12r + 12r = 0 7 = -24 + 0 7 = -24 Solving 7 = -24 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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