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Simplifying 7t + 6t = 13t Combine like terms: 7t + 6t = 13t 13t = 13t Add '-13t' to each side of the equation. 13t + -13t = 13t + -13t Combine like terms: 13t + -13t = 0 0 = 13t + -13t Combine like terms: 13t + -13t = 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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