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Simplifying 10 + -4(a + 2) = 7a Reorder the terms: 10 + -4(2 + a) = 7a 10 + (2 * -4 + a * -4) = 7a 10 + (-8 + -4a) = 7a Combine like terms: 10 + -8 = 2 2 + -4a = 7a Solving 2 + -4a = 7a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7a' to each side of the equation. 2 + -4a + -7a = 7a + -7a Combine like terms: -4a + -7a = -11a 2 + -11a = 7a + -7a Combine like terms: 7a + -7a = 0 2 + -11a = 0 Add '-2' to each side of the equation. 2 + -2 + -11a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -11a = 0 + -2 -11a = 0 + -2 Combine like terms: 0 + -2 = -2 -11a = -2 Divide each side by '-11'. a = 0.1818181818 Simplifying a = 0.1818181818
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