Plz asap im struggling with hw

what is the x-coordinate of the solution to the following system of equations?

2x + y = −4
5x + 3y = −6

x = −6
x = 6
x = −8
x = 8

Will mark the brainliest.paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?