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Simplifying -13a + 20 = -11a + 38 Reorder the terms: 20 + -13a = -11a + 38 Reorder the terms: 20 + -13a = 38 + -11a Solving 20 + -13a = 38 + -11a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '11a' to each side of the equation. 20 + -13a + 11a = 38 + -11a + 11a Combine like terms: -13a + 11a = -2a 20 + -2a = 38 + -11a + 11a Combine like terms: -11a + 11a = 0 20 + -2a = 38 + 0 20 + -2a = 38 Add '-20' to each side of the equation. 20 + -20 + -2a = 38 + -20 Combine like terms: 20 + -20 = 0 0 + -2a = 38 + -20 -2a = 38 + -20 Combine like terms: 38 + -20 = 18 -2a = 18 Divide each side by '-2'. a = -9 Simplifying a = -9
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