Question

rezolvati multimea N ecuatia :
56 inmultit (2x +1)=168

Answer 1

56(2x+1)=168
112x+56=168
112x=168-56
112x=112
x=112:112
x=1

Answer 2

$\displaystyle 56(2x+1)=168 \\ 112x+56=168 \\ 112x=168-56 \\ 112x=112 \\ x= \frac{112}{112} \\ x=1$