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Simplifying 7a + -4 + 5 = -30 Reorder the terms: -4 + 5 + 7a = -30 Combine like terms: -4 + 5 = 1 1 + 7a = -30 Solving 1 + 7a = -30 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 7a = -30 + -1 Combine like terms: 1 + -1 = 0 0 + 7a = -30 + -1 7a = -30 + -1 Combine like terms: -30 + -1 = -31 7a = -31 Divide each side by '7'. a = -4.428571429 Simplifying a = -4.428571429
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