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Simplifying 0.5(4r + -8) = 2r + 7 Reorder the terms: 0.5(-8 + 4r) = 2r + 7 (-8 * 0.5 + 4r * 0.5) = 2r + 7 (-4 + 2r) = 2r + 7 Reorder the terms: -4 + 2r = 7 + 2r Add '-2r' to each side of the equation. -4 + 2r + -2r = 7 + 2r + -2r Combine like terms: 2r + -2r = 0 -4 + 0 = 7 + 2r + -2r -4 = 7 + 2r + -2r Combine like terms: 2r + -2r = 0 -4 = 7 + 0 -4 = 7 Solving -4 = 7 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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