7x-2y=19
how would you subtract it from both sides if the left is variable terms and the right is numerical?
Ty again Reiny for the other solution
What are you attempting to do, solve for y ?
if so, then .....
7x - 2y = 19 , subtract 7x from both sides
-2y = -7x + 19 , multiply by -1 to get a positive y term
2y = 7x - 19 , divide every term by 2
y = (7/2)x - 19/2