Question

rezolvati sistemul 2x-y-1=0 3x-2y=1

Answer 1

2x-y-1=0 ⇒y=2x-1

3x-2y=1 ⇔ 3x-2(2x-1)=1⇔3x-4x+2=1⇔-x=1-2⇔x=1

y=2x-1=2-1=1 ⇔y=1