Question

alguem me ajuda ? (36-x)+ x+ (28x-x)=42

Answer 1

(36-x)+x+(28-x)=42 

36 - x + x + 28 - x = 42

- x - x + x = 42 - 36 - 28

- 2x + x = 42 - 64

- 1x = - 22 .(-1)

+1x = + 22

x = 22