Question

x/2-x/3+40=2/5 vcs podem me ajudar?,valeu!!

Answer 1

$\dfrac{x}{2} - \dfrac{x}{3}+40= \dfrac{2}{5} \\ \\ \\ \dfrac{x}{2} - \dfrac{x}{3}= \dfrac{2}{5} -40\\ \\ \\ \dfrac{x*3}{2*3} - \dfrac{x*2}{3*2}= \dfrac{2}{5} - \dfrac{40*5}{5}\\ \\ \\ \dfrac{3x}{6} - \dfrac{2x}{6}= \dfrac{2}{5} - \dfrac{200}{5}\\ \\ \\ \dfrac{3x-2x}{6} = \dfrac{2-200}{5}\\ \\ \\ \dfrac{x}{6} = \dfrac{-198}{5}\\ \\ \\ x= \dfrac{-198}{5}*6\\ \\ \\ \boxed{ x= \dfrac{-1188}{5} }$

Answer 2

Resposta:

Explicação passo-a-passo:

15x -10x +1200=12: 30

5×+1200=12

5×=12-1200

5×=-1188

×=1188/5