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Elis [28]
2 years ago
5

Find the substitution 2x+3y=-5 and y=-x+5

Mathematics
1 answer:
tatuchka [14]2 years ago
3 0

Answer: x = 20, y = -15

Step-by-step explanation:

Since we already know that y=-x+5, we can just substitute in that value of y into the other equation:

2x+3y=-5\\2x+3(-x+5)=-5\\2x-3x+15=-5\\-x=-5-15\\-x=-20\\x=20

with the value of x, we can find the value of y:

y=-x+5=-20+5=-15

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