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Simplifying 5x + 47 + 7x = 12(x + -4) Reorder the terms: 47 + 5x + 7x = 12(x + -4) Combine like terms: 5x + 7x = 12x 47 + 12x = 12(x + -4) Reorder the terms: 47 + 12x = 12(-4 + x) 47 + 12x = (-4 * 12 + x * 12) 47 + 12x = (-48 + 12x) Add '-12x' to each side of the equation. 47 + 12x + -12x = -48 + 12x + -12x Combine like terms: 12x + -12x = 0 47 + 0 = -48 + 12x + -12x 47 = -48 + 12x + -12x Combine like terms: 12x + -12x = 0 47 = -48 + 0 47 = -48 Solving 47 = -48 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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