Help plz it's a 9th grade question

X is equal to 7 and y is equal to 63
you get this by equaling the two y= equations to each other so 9x=2x+49 then you would solve algebraically to get x so 7x=49.
X=7
Then you would go back to the two original y= equations and place the value of x into the equation to find the value of y so
Y=9(7)
Y=63 and if you want to check it to make sure its right you can place it into the other y= equation and the values should be the same and in this case they are so the values are correct .

Iwould say false, not positive but if prices went up for both stores, technically there will be less buyers?