Question

2x(x-3)+x=2x(x-9)+16

Proszę o pomoc ;)

Answer 1

2x(x-3)+x=2x(x-9)+16

2x^2-6x+x=2x^2-18x+16

2x^2-5x=2x^2-18x+16

2x^2-2x^2-5x+18x=16

13x=16     /:13

x=16/13

x= 1  3/13