Question

alguém sabe essa: 2/a + 9a-8/5a = 5a-6/a

Answer 1

$\frac{2}{a}+ \frac{9a-8}{5a}= \frac{5a-6}{a} \\ \\ \frac{10a+a(9a-8)}{a.5a}= \frac{5a-6}{a} \\ \\ \frac{a(10+9a-8)}{a.5a}= \frac{5a-6}{a} \\ \\ \frac{10+9a-8}{5a}= \frac{5a-6}{a} \\ \\ a(10+9a-8)=5a(5a-6) \\ \\ 10+9a-8= \frac{5a(5a-6)}{a} \\ \\ 10+9a-8=5(5a-6) \\ \\ 10+9a-8=25a-30 \\ \\ 9a-25a=-30-10+8 \\ \\ -16a=-32 \\ \\ a=2$