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Simplifying 2(10x) = 630 Remove parenthesis around (10x) 2 * 10x = 630 Multiply 2 * 10 20x = 630 Solving 20x = 630 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '20'. x = 31.5 Simplifying x = 31.5
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