Answer:
We have infinite solutions along the line x-y =100
Step-by-step explanation:
x-y=100 ; 10x-10y=1000
Multiply the first equation by 10
10(x-y)=100*10
10x -10y - 1000
This is identical to the second equation
This means they are the same line
We have infinite solutions along the line x-y =100
