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Simplifying (-5)(-4) + -1(2)(4) = 0 Multiply -5 * -4 20 + -1(2)(4) = 0 Multiply -1 * 2 20 + -2 * 4 = 0 Multiply -2 * 4 20 + -8 = 0 Combine like terms: 20 + -8 = 12 12 = 0 Solving 12 = 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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