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Simplifying 40a + 7.50 = 12.50a Reorder the terms: 7.50 + 40a = 12.50a Solving 7.50 + 40a = 12.50a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-12.50a' to each side of the equation. 7.50 + 40a + -12.50a = 12.50a + -12.50a Combine like terms: 40a + -12.50a = 27.5a 7.50 + 27.5a = 12.50a + -12.50a Combine like terms: 12.50a + -12.50a = 0.00 7.50 + 27.5a = 0.00 Add '-7.50' to each side of the equation. 7.50 + -7.50 + 27.5a = 0.00 + -7.50 Combine like terms: 7.50 + -7.50 = 0.00 0.00 + 27.5a = 0.00 + -7.50 27.5a = 0.00 + -7.50 Combine like terms: 0.00 + -7.50 = -7.5 27.5a = -7.5 Divide each side by '27.5'. a = -0.2727272727 Simplifying a = -0.2727272727
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