Question

Salve Simultaneously using the elimination method X=y+1 X+2y=7​

Answer 1

x= y+1

x+2y=7

x-y = 1

x-2y=7

-1(x-y = 1)→-x+y =-1

-x+y=-1

x-2y=7

→-y=6→y=-6

we calculate x :

x=y+1

x=-6+1=-5

Explanation: