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Simplifying 216 = 2(2x) + 2(x) Remove parenthesis around (2x) 216 = 2 * 2x + 2(x) Multiply 2 * 2 216 = 4x + 2(x) Combine like terms: 4x + 2x = 6x 216 = 6x Solving 216 = 6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. 216 + -6x = 6x + -6x Combine like terms: 6x + -6x = 0 216 + -6x = 0 Add '-216' to each side of the equation. 216 + -216 + -6x = 0 + -216 Combine like terms: 216 + -216 = 0 0 + -6x = 0 + -216 -6x = 0 + -216 Combine like terms: 0 + -216 = -216 -6x = -216 Divide each side by '-6'. x = 36 Simplifying x = 36
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