X = -2y + 300 3y = 800 - 4x
2 answers:
Answer:
<h2>x = 140, y = 80</h2>
Step-by-step explanation:

Answer:
x=140, y=80.
Step-by-step explanation:
x=-2y+300
3y=800-4x
-----------------
3y=800-4(-2y+300)
3y=800+8y-1200
3y-8y=800-1200
-5y=-400
5y=400
y=400/5
y=80
x=-2(80)+300
x=-160+300
x=140
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