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Simplifying 4a + 2(-2 + a) + (-1 + -1a + -2 + a) = -11 4a + (-2 * 2 + a * 2) + (-1 + -1a + -2 + a) = -11 4a + (-4 + 2a) + (-1 + -1a + -2 + a) = -11 Reorder the terms: 4a + -4 + 2a + (-1 + -2 + -1a + a) = -11 Combine like terms: -1 + -2 = -3 4a + -4 + 2a + (-3 + -1a + a) = -11 Combine like terms: -1a + a = 0 4a + -4 + 2a + (-3 + 0) = -11 4a + -4 + 2a + (-3) = -11 4a + -4 + 2a + -3 = -11 Reorder the terms: -4 + -3 + 4a + 2a = -11 Combine like terms: -4 + -3 = -7 -7 + 4a + 2a = -11 Combine like terms: 4a + 2a = 6a -7 + 6a = -11 Solving -7 + 6a = -11 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 6a = -11 + 7 Combine like terms: -7 + 7 = 0 0 + 6a = -11 + 7 6a = -11 + 7 Combine like terms: -11 + 7 = -4 6a = -4 Divide each side by '6'. a = -0.6666666667 Simplifying a = -0.6666666667
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