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Simplifying 84 = 12 + 2x Solving 84 = 12 + 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. 84 + -2x = 12 + 2x + -2x Combine like terms: 2x + -2x = 0 84 + -2x = 12 + 0 84 + -2x = 12 Add '-84' to each side of the equation. 84 + -84 + -2x = 12 + -84 Combine like terms: 84 + -84 = 0 0 + -2x = 12 + -84 -2x = 12 + -84 Combine like terms: 12 + -84 = -72 -2x = -72 Divide each side by '-2'. x = 36 Simplifying x = 36
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