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Simplifying 15 + -11 = 2(x + -2) Combine like terms: 15 + -11 = 4 4 = 2(x + -2) Reorder the terms: 4 = 2(-2 + x) 4 = (-2 * 2 + x * 2) 4 = (-4 + 2x) Solving 4 = -4 + 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. 4 + -2x = -4 + 2x + -2x Combine like terms: 2x + -2x = 0 4 + -2x = -4 + 0 4 + -2x = -4 Add '-4' to each side of the equation. 4 + -4 + -2x = -4 + -4 Combine like terms: 4 + -4 = 0 0 + -2x = -4 + -4 -2x = -4 + -4 Combine like terms: -4 + -4 = -8 -2x = -8 Divide each side by '-2'. x = 4 Simplifying x = 4
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