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Simplifying 7a + 9b = -3 Solving 7a + 9b = -3 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9b' to each side of the equation. 7a + 9b + -9b = -3 + -9b Combine like terms: 9b + -9b = 0 7a + 0 = -3 + -9b 7a = -3 + -9b Divide each side by '7'. a = -0.4285714286 + -1.285714286b Simplifying a = -0.4285714286 + -1.285714286b
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