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Simplifying 8 + -2(a + 2) + -7 + a = -3 Reorder the terms: 8 + -2(2 + a) + -7 + a = -3 8 + (2 * -2 + a * -2) + -7 + a = -3 8 + (-4 + -2a) + -7 + a = -3 Reorder the terms: 8 + -4 + -7 + -2a + a = -3 Combine like terms: 8 + -4 = 4 4 + -7 + -2a + a = -3 Combine like terms: 4 + -7 = -3 -3 + -2a + a = -3 Combine like terms: -2a + a = -1a -3 + -1a = -3 Add '3' to each side of the equation. -3 + 3 + -1a = -3 + 3 Combine like terms: -3 + 3 = 0 0 + -1a = -3 + 3 -1a = -3 + 3 Combine like terms: -3 + 3 = 0 -1a = 0 Solving -1a = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Divide each side by '-1'. a = 0 Simplifying a = 0
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