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Simplifying 7a + -3a + 2 = 2(2a + -1) Reorder the terms: 2 + 7a + -3a = 2(2a + -1) Combine like terms: 7a + -3a = 4a 2 + 4a = 2(2a + -1) Reorder the terms: 2 + 4a = 2(-1 + 2a) 2 + 4a = (-1 * 2 + 2a * 2) 2 + 4a = (-2 + 4a) Add '-4a' to each side of the equation. 2 + 4a + -4a = -2 + 4a + -4a Combine like terms: 4a + -4a = 0 2 + 0 = -2 + 4a + -4a 2 = -2 + 4a + -4a Combine like terms: 4a + -4a = 0 2 = -2 + 0 2 = -2 Solving 2 = -2 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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