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Simplifying 4a + -7 = 4(a + -2) + 3 Reorder the terms: -7 + 4a = 4(a + -2) + 3 Reorder the terms: -7 + 4a = 4(-2 + a) + 3 -7 + 4a = (-2 * 4 + a * 4) + 3 -7 + 4a = (-8 + 4a) + 3 Reorder the terms: -7 + 4a = -8 + 3 + 4a Combine like terms: -8 + 3 = -5 -7 + 4a = -5 + 4a Add '-4a' to each side of the equation. -7 + 4a + -4a = -5 + 4a + -4a Combine like terms: 4a + -4a = 0 -7 + 0 = -5 + 4a + -4a -7 = -5 + 4a + -4a Combine like terms: 4a + -4a = 0 -7 = -5 + 0 -7 = -5 Solving -7 = -5 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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