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Simplifying 18 + x = 5x Solving 18 + x = 5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x' to each side of the equation. 18 + x + -5x = 5x + -5x Combine like terms: x + -5x = -4x 18 + -4x = 5x + -5x Combine like terms: 5x + -5x = 0 18 + -4x = 0 Add '-18' to each side of the equation. 18 + -18 + -4x = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -4x = 0 + -18 -4x = 0 + -18 Combine like terms: 0 + -18 = -18 -4x = -18 Divide each side by '-4'. x = 4.5 Simplifying x = 4.5
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