SOLUTION: System of Equations by Substitution Solve each system by substitution. 7x+y=0 2x-y=9

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Question 347108: System of Equations by Substitution

Solve each system by substitution.
7x+y=0
2x-y=9

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
1.
2.
.
.
.
From eq. 2,

Substitute into eq. 1,




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