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Simplifying x + (13 * 9) = 2x Multiply 13 * 9 x + (117) = 2x x + 117 = 2x Reorder the terms: 117 + x = 2x Solving 117 + x = 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 117 + x + -2x = 2x + -2x Combine like terms: x + -2x = -1x 117 + -1x = 2x + -2x Combine like terms: 2x + -2x = 0 117 + -1x = 0 Add '-117' to each side of the equation. 117 + -117 + -1x = 0 + -117 Combine like terms: 117 + -117 = 0 0 + -1x = 0 + -117 -1x = 0 + -117 Combine like terms: 0 + -117 = -117 -1x = -117 Divide each side by '-1'. x = 117 Simplifying x = 117
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