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Simplifying -4a + 7 = 7a + -20 Reorder the terms: 7 + -4a = 7a + -20 Reorder the terms: 7 + -4a = -20 + 7a Solving 7 + -4a = -20 + 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. 7 + -4a + -7a = -20 + 7a + -7a Combine like terms: -4a + -7a = -11a 7 + -11a = -20 + 7a + -7a Combine like terms: 7a + -7a = 0 7 + -11a = -20 + 0 7 + -11a = -20 Add '-7' to each side of the equation. 7 + -7 + -11a = -20 + -7 Combine like terms: 7 + -7 = 0 0 + -11a = -20 + -7 -11a = -20 + -7 Combine like terms: -20 + -7 = -27 -11a = -27 Divide each side by '-11'. a = 2.454545455 Simplifying a = 2.454545455
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