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Simplifying 4(x + -8) + 10 = 4x + -21 Reorder the terms: 4(-8 + x) + 10 = 4x + -21 (-8 * 4 + x * 4) + 10 = 4x + -21 (-32 + 4x) + 10 = 4x + -21 Reorder the terms: -32 + 10 + 4x = 4x + -21 Combine like terms: -32 + 10 = -22 -22 + 4x = 4x + -21 Reorder the terms: -22 + 4x = -21 + 4x Add '-4x' to each side of the equation. -22 + 4x + -4x = -21 + 4x + -4x Combine like terms: 4x + -4x = 0 -22 + 0 = -21 + 4x + -4x -22 = -21 + 4x + -4x Combine like terms: 4x + -4x = 0 -22 = -21 + 0 -22 = -21 Solving -22 = -21 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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