SOLUTION: Solve the system by the substitution method:
x= 4y + 7
7x + y= 20
what is x and y?
Algebra.Com
Question 188025This question is from textbook Saxon
: Solve the system by the substitution method:
x= 4y + 7
7x + y= 20
what is x and y?
This question is from textbook Saxon
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!
Given;
x= 4y + 7, EQN 1
7x + y= 20, EQN 2
Substitute EQN 1 in EQN 2:
---->
, substitue in EQN 1
Answer (x,y)=(3,-1)
We'll see graph:
==> RED, EQN 1 ;; GREEN, EQN 2
Thank you,
Jojo
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