Question

5 (90-x)-2(180-x)=90? heeelllpppp :)

Answer 1

5.(90 - x) - 2.(180 - x) = 90

450 - 5x - 360 + 2x = 90
-5x + 2x = 90 - 90
-3x = 0
x = 0/-3
x = 0

Answer 2

Olá :)

5 (90-x) -2 (180-x) = 90
450 - 5x -360 + 2x = 90
-5x + 2x = 90 - 450 + 360
-3x = -450 + 450
-3x = 0
x = 0/3 /(-)
x = 0

prova :

5 (90-0) - 2 (180-0) = 90
5× 90 - 2× 180 = 90
450 - 360 = 90
90=90