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Simplifying 15 = 0.5(12 + 18) Combine like terms: 12 + 18 = 30 15 = 0.5(30) Multiply 0.5 * 30 15 = 15 Add '-15' to each side of the equation. 15 + -15 = 15 + -15 Combine like terms: 15 + -15 = 0 0 = 15 + -15 Combine like terms: 15 + -15 = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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