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2 years ago

Solve the system of equations using substitution: 7y+2x=16 5y-9=x

Mathematics

1 answer:

7nadin3 [17]2 years ago

5 0

7y+2(5y-9)=16
7y+10y-18=16
17y=34
y=2

5(2)-9=x
10-9=x
x=1

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