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Simplifying 14(3.5) + -28 = 4(3.5) + 7 Multiply 14 * 3.5 49 + -28 = 4(3.5) + 7 Combine like terms: 49 + -28 = 21 21 = 4(3.5) + 7 Multiply 4 * 3.5 21 = 14 + 7 Combine like terms: 14 + 7 = 21 21 = 21 Add '-21' to each side of the equation. 21 + -21 = 21 + -21 Combine like terms: 21 + -21 = 0 0 = 21 + -21 Combine like terms: 21 + -21 = 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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