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Simplifying 5 + -2(-5.5 + 2) = 12 Combine like terms: -5.5 + 2 = -3.5 5 + -2(-3.5) = 12 Multiply -2 * -3.5 5 + 7 = 12 Combine like terms: 5 + 7 = 12 12 = 12 Add '-12' to each side of the equation. 12 + -12 = 12 + -12 Combine like terms: 12 + -12 = 0 0 = 12 + -12 Combine like terms: 12 + -12 = 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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