X + y = -15. Subtract x from both sides.
y = -x - 15. This is as far as we can go with the provided information.
Add 16 and 13 and 5 then after you got your total count up to 75 use a paper to help you solve then the amount you counted up to will be the amount of the cost of the video game
X + y = 40.....multiply by -4
4x + 6y = 180
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-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
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2y = 20
y = 20/2
y = 10 <===
x = 30
One moment, i wills answer soon working on it