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Simplifying 2(a + -2) + -5a = 7 Reorder the terms: 2(-2 + a) + -5a = 7 (-2 * 2 + a * 2) + -5a = 7 (-4 + 2a) + -5a = 7 Combine like terms: 2a + -5a = -3a -4 + -3a = 7 Solving -4 + -3a = 7 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -3a = 7 + 4 Combine like terms: -4 + 4 = 0 0 + -3a = 7 + 4 -3a = 7 + 4 Combine like terms: 7 + 4 = 11 -3a = 11 Divide each side by '-3'. a = -3.666666667 Simplifying a = -3.666666667
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