Question

helpem meeee e) x + y ( para x = ½ e y = -1/5) (R: 3/10) come q faz? passo a passo

Answer 1

Resposta:

$\boxed{ x=\frac{1}{2}},\boxed{ y=-\frac{1}{5}}\\\\x+y\\\boxed{ \frac{1}{2}-\frac{1}{5}}=>\frac{...-...}{2*5}=>\frac{...-...}{10}\\\\=>\frac{(10:2)*1}{10}-\frac{(10:5)*1}{10}\\=>\frac{(5*1)-(2*1)}{10}\\=>\frac{5-2}{10}\\=\frac{3}{10}\\\\Resposta;\\\boxed{ \frac{3}{10}}$

Explicação passo-a-passo: