Question

-1/3a+5/3a-4/3a conta

Answer 1

≡$- \frac{1}{3}a + \frac{5}{3}a - \frac{4}{3} a \\ - \frac{1}{3}a + \frac{5}{3}a = \frac{4}{3}a \\ \frac{4}{3} a - \frac{4}{3} a = 0$
espero ter ajudado