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Simplifying 2a + 30 = 7a Reorder the terms: 30 + 2a = 7a Solving 30 + 2a = 7a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7a' to each side of the equation. 30 + 2a + -7a = 7a + -7a Combine like terms: 2a + -7a = -5a 30 + -5a = 7a + -7a Combine like terms: 7a + -7a = 0 30 + -5a = 0 Add '-30' to each side of the equation. 30 + -30 + -5a = 0 + -30 Combine like terms: 30 + -30 = 0 0 + -5a = 0 + -30 -5a = 0 + -30 Combine like terms: 0 + -30 = -30 -5a = -30 Divide each side by '-5'. a = 6 Simplifying a = 6
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