Question

2a + 3b para A= -1/5 e B = 2/3

Answer 1

$\Large\boxed{\begin{array}{l}\sf2a+3b~a=-\dfrac{1}{5}~b=\dfrac{2}{3}\\\\\sf2a+3b=2\cdot\bigg(-\dfrac{1}{5}\bigg)+\backslash\!\!\!3\cdot\dfrac{2}{\backslash\!\!\!3}\\\\\sf2a+3b=-\dfrac{2}{5}+2=\dfrac{-2+10}{5}=\dfrac{8}{5}\checkmark\end{array}}$

Answer 2

Resposta:8 sobre5

Explicação passo a passo: