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Simplifying 9a + 7 = 4 Reorder the terms: 7 + 9a = 4 Solving 7 + 9a = 4 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 9a = 4 + -7 Combine like terms: 7 + -7 = 0 0 + 9a = 4 + -7 9a = 4 + -7 Combine like terms: 4 + -7 = -3 9a = -3 Divide each side by '9'. a = -0.3333333333 Simplifying a = -0.3333333333
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