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Solve the system by substitution 7x -3y = -25 4x + 5 = y

Solve the system by substitution 7x -3y = -25 4x + 5 = y
asked 206k views
1 vote
Solve the system by substitution
7x -3y = -25
4x + 5 = y

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User Stenerson
by
8.5k points

1 Answer

4 votes


7x-3(4x+5)=-25\\\\7x-12x-15=-25\\\\-5x-15=-25\\\\x+3=5\\\\x=2\\\\y=4(2)+5=13\\\\\therefore \boxed{(x,y)=(2, 13)}

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User DaeYoung
by
7.7k points
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