Question

Qual a resposta da equação 20×-30=40+30.20

Answer 1

Explicação passo-a-passo:

20×-30=40+30.20

20x-30=40+600

20x=600+40+30

20x=600+70

20x=670

x=670/20

x=(670÷10)/(20÷10)

x=67/2

Resposta :

x=67/2

Answer 2

$\textcolor{red}{20x-30=40+30.20}$

$\textcolor{red}{20x-30=40+600}$

$\textcolor{red}{20x=30+40+600}$

$\textcolor{red}{20x=670}$

$\textcolor{red}{x=\frac{67\cancel0}{2\cancel0}}$

$\textcolor{green}{x=\frac{67}{2}}\textcolor{blue}{\checkmark}$