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Simplifying 399 = 16.50a + 137 Reorder the terms: 399 = 137 + 16.50a Solving 399 = 137 + 16.50a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-16.50a' to each side of the equation. 399 + -16.50a = 137 + 16.50a + -16.50a Combine like terms: 16.50a + -16.50a = 0.00 399 + -16.50a = 137 + 0.00 399 + -16.50a = 137 Add '-399' to each side of the equation. 399 + -399 + -16.50a = 137 + -399 Combine like terms: 399 + -399 = 0 0 + -16.50a = 137 + -399 -16.50a = 137 + -399 Combine like terms: 137 + -399 = -262 -16.50a = -262 Divide each side by '-16.50'. a = 15.87878788 Simplifying a = 15.87878788
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