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Simplifying 7(x + 8) = (7x + 42) Reorder the terms: 7(8 + x) = (7x + 42) (8 * 7 + x * 7) = (7x + 42) (56 + 7x) = (7x + 42) Reorder the terms: 56 + 7x = (42 + 7x) Remove parenthesis around (42 + 7x) 56 + 7x = 42 + 7x Add '-7x' to each side of the equation. 56 + 7x + -7x = 42 + 7x + -7x Combine like terms: 7x + -7x = 0 56 + 0 = 42 + 7x + -7x 56 = 42 + 7x + -7x Combine like terms: 7x + -7x = 0 56 = 42 + 0 56 = 42 Solving 56 = 42 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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