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Simplifying 12 + -1(x * 2) = -7 Reorder the terms for easier multiplication: 12 + -1(2x) = -7 Remove parenthesis around (2x) 12 + -1 * 2x = -7 Multiply -1 * 2 12 + -2x = -7 Solving 12 + -2x = -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 + -2x = -7 + -12 Combine like terms: 12 + -12 = 0 0 + -2x = -7 + -12 -2x = -7 + -12 Combine like terms: -7 + -12 = -19 -2x = -19 Divide each side by '-2'. x = 9.5 Simplifying x = 9.5
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