Which line has an x-intercept of 4?

2 x+ 2 y = -8
4 x + y = 8
-2 x + 2 y = -8
-4 x + y = 8

Margaret is purchasing a house for $210,000 with a 15 year fixed rate mortgage at 4.75% interest she has made a 5% down payment the house is valued at 205,000 and the local tax rate is 3.5% homeowners insurance 600 per year what are her total monthly payment