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Simplifying -4(1) + 9(-5) = 0 Multiply -4 * 1 -4 + 9(-5) = 0 Multiply 9 * -5 -4 + -45 = 0 Combine like terms: -4 + -45 = -49 -49 = 0 Solving -49 = 0 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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