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Simplifying 30 + 2U = 15 + 7U Solving 30 + 2U = 15 + 7U Solving for variable 'U'. Move all terms containing U to the left, all other terms to the right. Add '-7U' to each side of the equation. 30 + 2U + -7U = 15 + 7U + -7U Combine like terms: 2U + -7U = -5U 30 + -5U = 15 + 7U + -7U Combine like terms: 7U + -7U = 0 30 + -5U = 15 + 0 30 + -5U = 15 Add '-30' to each side of the equation. 30 + -30 + -5U = 15 + -30 Combine like terms: 30 + -30 = 0 0 + -5U = 15 + -30 -5U = 15 + -30 Combine like terms: 15 + -30 = -15 -5U = -15 Divide each side by '-5'. U = 3 Simplifying U = 3
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