Question

2x-13suprax-4= 2x-8-5suprax-4​

Answer 1

Răspuns:

2x-13supra x-4=2x-8-5supra x-4

2x-13supra x-4=2x-8-5supra x-4,x diferit de 0

-13 supra x=-8-5 supra 5

-13 supra x+5 supra x=-8

-8 supra x=-8

8=8x

1=x

x=1