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Simplifying -2(x + -20) + 20 = 2x + -4(x + -8) Reorder the terms: -2(-20 + x) + 20 = 2x + -4(x + -8) (-20 * -2 + x * -2) + 20 = 2x + -4(x + -8) (40 + -2x) + 20 = 2x + -4(x + -8) Reorder the terms: 40 + 20 + -2x = 2x + -4(x + -8) Combine like terms: 40 + 20 = 60 60 + -2x = 2x + -4(x + -8) Reorder the terms: 60 + -2x = 2x + -4(-8 + x) 60 + -2x = 2x + (-8 * -4 + x * -4) 60 + -2x = 2x + (32 + -4x) Reorder the terms: 60 + -2x = 32 + 2x + -4x Combine like terms: 2x + -4x = -2x 60 + -2x = 32 + -2x Add '2x' to each side of the equation. 60 + -2x + 2x = 32 + -2x + 2x Combine like terms: -2x + 2x = 0 60 + 0 = 32 + -2x + 2x 60 = 32 + -2x + 2x Combine like terms: -2x + 2x = 0 60 = 32 + 0 60 = 32 Solving 60 = 32 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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