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Simplifying (2a + b) + -1(-3a + 3b) = 0 Remove parenthesis around (2a + b) 2a + b + -1(-3a + 3b) = 0 2a + b + (-3a * -1 + 3b * -1) = 0 2a + b + (3a + -3b) = 0 Reorder the terms: 2a + 3a + b + -3b = 0 Combine like terms: 2a + 3a = 5a 5a + b + -3b = 0 Combine like terms: b + -3b = -2b 5a + -2b = 0 Solving 5a + -2b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2b' to each side of the equation. 5a + -2b + 2b = 0 + 2b Combine like terms: -2b + 2b = 0 5a + 0 = 0 + 2b 5a = 0 + 2b Remove the zero: 5a = 2b Divide each side by '5'. a = 0.4b Simplifying a = 0.4b
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