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Simplifying 7(x + 5) + -7 = 35 + -5x + -7 + 12x Reorder the terms: 7(5 + x) + -7 = 35 + -5x + -7 + 12x (5 * 7 + x * 7) + -7 = 35 + -5x + -7 + 12x (35 + 7x) + -7 = 35 + -5x + -7 + 12x Reorder the terms: 35 + -7 + 7x = 35 + -5x + -7 + 12x Combine like terms: 35 + -7 = 28 28 + 7x = 35 + -5x + -7 + 12x Reorder the terms: 28 + 7x = 35 + -7 + -5x + 12x Combine like terms: 35 + -7 = 28 28 + 7x = 28 + -5x + 12x Combine like terms: -5x + 12x = 7x 28 + 7x = 28 + 7x Add '-28' to each side of the equation. 28 + -28 + 7x = 28 + -28 + 7x Combine like terms: 28 + -28 = 0 0 + 7x = 28 + -28 + 7x 7x = 28 + -28 + 7x Combine like terms: 28 + -28 = 0 7x = 0 + 7x 7x = 7x Add '-7x' to each side of the equation. 7x + -7x = 7x + -7x Combine like terms: 7x + -7x = 0 0 = 7x + -7x Combine like terms: 7x + -7x = 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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