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Simplifying 4x + -7(2 + -5) = 4(x + -2) + 2 Combine like terms: 2 + -5 = -3 4x + -7(-3) = 4(x + -2) + 2 Multiply -7 * -3 4x + 21 = 4(x + -2) + 2 Reorder the terms: 21 + 4x = 4(x + -2) + 2 Reorder the terms: 21 + 4x = 4(-2 + x) + 2 21 + 4x = (-2 * 4 + x * 4) + 2 21 + 4x = (-8 + 4x) + 2 Reorder the terms: 21 + 4x = -8 + 2 + 4x Combine like terms: -8 + 2 = -6 21 + 4x = -6 + 4x Add '-4x' to each side of the equation. 21 + 4x + -4x = -6 + 4x + -4x Combine like terms: 4x + -4x = 0 21 + 0 = -6 + 4x + -4x 21 = -6 + 4x + -4x Combine like terms: 4x + -4x = 0 21 = -6 + 0 21 = -6 Solving 21 = -6 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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