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Simplifying -7(x + -18) = 84 Reorder the terms: -7(-18 + x) = 84 (-18 * -7 + x * -7) = 84 (126 + -7x) = 84 Solving 126 + -7x = 84 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-126' to each side of the equation. 126 + -126 + -7x = 84 + -126 Combine like terms: 126 + -126 = 0 0 + -7x = 84 + -126 -7x = 84 + -126 Combine like terms: 84 + -126 = -42 -7x = -42 Divide each side by '-7'. x = 6 Simplifying x = 6
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