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Simplifying 7(z + 8) = 7(z + -6) Reorder the terms: 7(8 + z) = 7(z + -6) (8 * 7 + z * 7) = 7(z + -6) (56 + 7z) = 7(z + -6) Reorder the terms: 56 + 7z = 7(-6 + z) 56 + 7z = (-6 * 7 + z * 7) 56 + 7z = (-42 + 7z) Add '-7z' to each side of the equation. 56 + 7z + -7z = -42 + 7z + -7z Combine like terms: 7z + -7z = 0 56 + 0 = -42 + 7z + -7z 56 = -42 + 7z + -7z Combine like terms: 7z + -7z = 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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