Raymond B. answered 06/22/21
Math, microeconomics or criminal justice
2x -2y =-14, divide both sides by 2
x -y =-7
y =x+7 is a straight line with y intercept = 7 and x intercept =-7. Plot those two points (0,7) and (-7,0) and draw a line connecting them. Any point on the line, extended in both directions, is a solution to the equation
(x,y) = (x, x+7) or (y-7, y)
such as
(1,8), (2, 9), (3,10), ...