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Simplifying 7(k + m) = 7k + 7m (k * 7 + m * 7) = 7k + 7m (7k + 7m) = 7k + 7m Add '-7k' to each side of the equation. 7k + -7k + 7m = 7k + -7k + 7m Combine like terms: 7k + -7k = 0 0 + 7m = 7k + -7k + 7m 7m = 7k + -7k + 7m Combine like terms: 7k + -7k = 0 7m = 0 + 7m 7m = 7m Add '-7m' to each side of the equation. 7m + -7m = 7m + -7m Combine like terms: 7m + -7m = 0 0 = 7m + -7m Combine like terms: 7m + -7m = 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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