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Simplifying -3(21 + 5) + (4 * 21 + 2) = 8 Combine like terms: 21 + 5 = 26 -3(26) + (4 * 21 + 2) = 8 Multiply -3 * 26 -78 + (4 * 21 + 2) = 8 Multiply 4 * 21 -78 + (84 + 2) = 8 Combine like terms: 84 + 2 = 86 -78 + (86) = 8 -78 + 86 = 8 Combine like terms: -78 + 86 = 8 8 = 8 Add '-8' to each side of the equation. 8 + -8 = 8 + -8 Combine like terms: 8 + -8 = 0 0 = 8 + -8 Combine like terms: 8 + -8 = 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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