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Simplifying 7(7a + 6b) = 0 (7a * 7 + 6b * 7) = 0 (49a + 42b) = 0 Solving 49a + 42b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-42b' to each side of the equation. 49a + 42b + -42b = 0 + -42b Combine like terms: 42b + -42b = 0 49a + 0 = 0 + -42b 49a = 0 + -42b Remove the zero: 49a = -42b Divide each side by '49'. a = -0.8571428571b Simplifying a = -0.8571428571b
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