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Simplifying -30x + 57 = -30x + 57 Reorder the terms: 57 + -30x = -30x + 57 Reorder the terms: 57 + -30x = 57 + -30x Add '-57' to each side of the equation. 57 + -57 + -30x = 57 + -57 + -30x Combine like terms: 57 + -57 = 0 0 + -30x = 57 + -57 + -30x -30x = 57 + -57 + -30x Combine like terms: 57 + -57 = 0 -30x = 0 + -30x -30x = -30x Add '30x' to each side of the equation. -30x + 30x = -30x + 30x Combine like terms: -30x + 30x = 0 0 = -30x + 30x Combine like terms: -30x + 30x = 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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