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Simplifying 2x + -3(x + 4) = 7 Reorder the terms: 2x + -3(4 + x) = 7 2x + (4 * -3 + x * -3) = 7 2x + (-12 + -3x) = 7 Reorder the terms: -12 + 2x + -3x = 7 Combine like terms: 2x + -3x = -1x -12 + -1x = 7 Solving -12 + -1x = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -1x = 7 + 12 Combine like terms: -12 + 12 = 0 0 + -1x = 7 + 12 -1x = 7 + 12 Combine like terms: 7 + 12 = 19 -1x = 19 Divide each side by '-1'. x = -19 Simplifying x = -19
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