SOLUTION: can you please help me solve and check this problem using the substitution method. (((y=5x 2x+y=28)))

SOLUTION: can you please help me solve and check this problem using the substitution method. (((y=5x 2x+y=28)))

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Question 153312This question is from textbook Algebra structure and method book 1
: can you please help me solve and check this problem using the substitution method. (((y=5x 2x+y=28))) This question is from textbook Algebra structure and method book 1

Answer by mangopeeler07(462) (Show Source): You can put this solution on YOUR website!
and :

You have y as 5x in the first equation, so substitute 5x for y in the second equation:

Combine like terms

Divide both sides by 7

Now you know that y is 5x, so to find out y, plug in 4 for x.

Simplify

Answer:
x=4
y=20
(4,20)
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