Question

Rezolvați ecuația x- x-1 supra 2 =2 ( doar x-1 supra 2 )

Answer 1

[tex]^{2)}x- \frac{x-1}{2}=^{2)}2 \\ \frac{2x}{2}- \frac{x-1}{2}= \frac{4}{2}|*2 \\ 2x-x+1=4 \\ x+1=4 \\ \boxed{x=3} [/tex]