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Simplifying 90 + (2(-11.5 + -0.5x)) = 180 + -1x 90 + ((-11.5 * 2 + -0.5x * 2)) = 180 + -1x 90 + ((-23 + -1x)) = 180 + -1x 90 + (-23 + -1x) = 180 + -1x Remove parenthesis around (-23 + -1x) 90 + -23 + -1x = 180 + -1x Combine like terms: 90 + -23 = 67 67 + -1x = 180 + -1x Add 'x' to each side of the equation. 67 + -1x + x = 180 + -1x + x Combine like terms: -1x + x = 0 67 + 0 = 180 + -1x + x 67 = 180 + -1x + x Combine like terms: -1x + x = 0 67 = 180 + 0 67 = 180 Solving 67 = 180 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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