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Simplifying 7b + 12 = 12 + 7b Reorder the terms: 12 + 7b = 12 + 7b Add '-12' to each side of the equation. 12 + -12 + 7b = 12 + -12 + 7b Combine like terms: 12 + -12 = 0 0 + 7b = 12 + -12 + 7b 7b = 12 + -12 + 7b Combine like terms: 12 + -12 = 0 7b = 0 + 7b 7b = 7b Add '-7b' to each side of the equation. 7b + -7b = 7b + -7b Combine like terms: 7b + -7b = 0 0 = 7b + -7b Combine like terms: 7b + -7b = 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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