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Simplifying -7 = 9a Solving -7 = 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. -7 + -9a = 9a + -9a Combine like terms: 9a + -9a = 0 -7 + -9a = 0 Add '7' to each side of the equation. -7 + 7 + -9a = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -9a = 0 + 7 -9a = 0 + 7 Combine like terms: 0 + 7 = 7 -9a = 7 Divide each side by '-9'. a = -0.7777777778 Simplifying a = -0.7777777778
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