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Simplifying 7 = 4a + 2b Solving 7 = 4a + 2b Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-4a' to each side of the equation. 7 + -4a = 4a + -4a + 2b Combine like terms: 4a + -4a = 0 7 + -4a = 0 + 2b 7 + -4a = 2b Add '-7' to each side of the equation. 7 + -7 + -4a = -7 + 2b Combine like terms: 7 + -7 = 0 0 + -4a = -7 + 2b -4a = -7 + 2b Divide each side by '-4'. a = 1.75 + -0.5b Simplifying a = 1.75 + -0.5b
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