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Simplifying -2a + b = 7 Solving -2a + b = 7 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1b' to each side of the equation. -2a + b + -1b = 7 + -1b Combine like terms: b + -1b = 0 -2a + 0 = 7 + -1b -2a = 7 + -1b Divide each side by '-2'. a = -3.5 + 0.5b Simplifying a = -3.5 + 0.5b
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