Question

Resolva a seguinte equação: $\frac{2x-1}{9} - \frac{x-4}{5} = x$

Answer 1

soma de frações
$\boxed{ \frac{A}{B} + \frac{C}{D}= \frac{AD+CB}{BD} }$

aplicando isso

$\frac{2x-1}{9} - \frac{x-4}{5} =x\\\\ \frac{(2x-1)*5 - (x-4)*9}{9*5} =x\\\\ \frac{10x-5-(9x-36)}{45}=x\\\\ \frac{10x-5-9x+36}{45}=x\\\\ \frac{x+31}{45}=x\\\\x+31=45*x\\\\ 31=45x-x\\\\31=44x\\\\ \frac{31}{44}=x$