Question

а−3,2 /2 а+1,4 = 1 /3 решите срочно !!!!!!

Answer 1

3(а-3,2)=2а+1,4
3а-9,6=2а+1,4
а=11

Answer 2

$\frac{a - 3.2}{2a + 1.4} = \frac{1}{3} \\ \frac{a - \frac{16}{5} }{2a + \frac{7}{5} } = \frac{1}{3} \\ \frac{ \frac{5a - 16}{5} }{ \frac{10a + 7}{5} } = \frac{1}{3} \\ \frac{5a - 16}{10a + 7} = \frac{1}{3} \\ 3(5a - 16) = 10a + 7 \\ 15a - 48 = 10a + 7 \\ 15a - 10a = 7 + 48 \\ 5a = 55 \\ \\ a = 11$