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Simplifying 7a + -6 = 9a + -11 Reorder the terms: -6 + 7a = 9a + -11 Reorder the terms: -6 + 7a = -11 + 9a Solving -6 + 7a = -11 + 9a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9a' to each side of the equation. -6 + 7a + -9a = -11 + 9a + -9a Combine like terms: 7a + -9a = -2a -6 + -2a = -11 + 9a + -9a Combine like terms: 9a + -9a = 0 -6 + -2a = -11 + 0 -6 + -2a = -11 Add '6' to each side of the equation. -6 + 6 + -2a = -11 + 6 Combine like terms: -6 + 6 = 0 0 + -2a = -11 + 6 -2a = -11 + 6 Combine like terms: -11 + 6 = -5 -2a = -5 Divide each side by '-2'. a = 2.5 Simplifying a = 2.5
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