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Simplifying 42x + -84 = 14(3x + -6) Reorder the terms: -84 + 42x = 14(3x + -6) Reorder the terms: -84 + 42x = 14(-6 + 3x) -84 + 42x = (-6 * 14 + 3x * 14) -84 + 42x = (-84 + 42x) Add '84' to each side of the equation. -84 + 84 + 42x = -84 + 84 + 42x Combine like terms: -84 + 84 = 0 0 + 42x = -84 + 84 + 42x 42x = -84 + 84 + 42x Combine like terms: -84 + 84 = 0 42x = 0 + 42x 42x = 42x Add '-42x' to each side of the equation. 42x + -42x = 42x + -42x Combine like terms: 42x + -42x = 0 0 = 42x + -42x Combine like terms: 42x + -42x = 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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