Question

X+y=5 x-y=1
Please anser Dis intrebare

Answer 1

5-1=4
4%2=2(impărțit)=>y=2
x=2+1
x=3

Answer 2

X+y=5
X-y=1
Scoatem pe x in functie de y, deci avem x=5-y
5-y-y=1
5-2y=1
-2y=1-5
-2y=-4
Y=2
X-y=1
X-2=1
X=3.