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Simplifying 7.5 = 4.5 + 2a Solving 7.5 = 4.5 + 2a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2a' to each side of the equation. 7.5 + -2a = 4.5 + 2a + -2a Combine like terms: 2a + -2a = 0 7.5 + -2a = 4.5 + 0 7.5 + -2a = 4.5 Add '-7.5' to each side of the equation. 7.5 + -7.5 + -2a = 4.5 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + -2a = 4.5 + -7.5 -2a = 4.5 + -7.5 Combine like terms: 4.5 + -7.5 = -3 -2a = -3 Divide each side by '-2'. a = 1.5 Simplifying a = 1.5
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