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Simplifying 3(2t + 7) = 6t + 21 Reorder the terms: 3(7 + 2t) = 6t + 21 (7 * 3 + 2t * 3) = 6t + 21 (21 + 6t) = 6t + 21 Reorder the terms: 21 + 6t = 21 + 6t Add '-21' to each side of the equation. 21 + -21 + 6t = 21 + -21 + 6t Combine like terms: 21 + -21 = 0 0 + 6t = 21 + -21 + 6t 6t = 21 + -21 + 6t Combine like terms: 21 + -21 = 0 6t = 0 + 6t 6t = 6t Add '-6t' to each side of the equation. 6t + -6t = 6t + -6t Combine like terms: 6t + -6t = 0 0 = 6t + -6t Combine like terms: 6t + -6t = 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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