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Simplifying 3(2 + 5i) = 6 + 15i (2 * 3 + 5i * 3) = 6 + 15i (6 + 15i) = 6 + 15i Add '-6' to each side of the equation. 6 + -6 + 15i = 6 + -6 + 15i Combine like terms: 6 + -6 = 0 0 + 15i = 6 + -6 + 15i 15i = 6 + -6 + 15i Combine like terms: 6 + -6 = 0 15i = 0 + 15i 15i = 15i Add '-15i' to each side of the equation. 15i + -15i = 15i + -15i Combine like terms: 15i + -15i = 0 0 = 15i + -15i Combine like terms: 15i + -15i = 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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