## Algebra: A Combined Approach (4th Edition)

a = -$\frac{3}{10}$
-(4a - 7) - 5a = 10 + a Distribute: -4a + 7 - 5a = 10 + a Combine like terms: -9a + 7 = 10 + a Subtract a from both sides: -10a + 7 = 10 Subtract 7 from both sides: -10a = 3 Divide both sides by -10 a = -$\frac{3}{10}$