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Simplifying 5a + -5 = 7 + 5a Reorder the terms: -5 + 5a = 7 + 5a Add '-5a' to each side of the equation. -5 + 5a + -5a = 7 + 5a + -5a Combine like terms: 5a + -5a = 0 -5 + 0 = 7 + 5a + -5a -5 = 7 + 5a + -5a Combine like terms: 5a + -5a = 0 -5 = 7 + 0 -5 = 7 Solving -5 = 7 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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