SOLUTION: How do I use the substitution method to solve two linear equations? Please help! 5x + y = 30 x + 6y = 4

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Question 324722: How do I use the substitution method to solve two linear equations? Please help!
5x + y = 30
x + 6y = 4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.15x+%2B+y+=+30
2.x+%2B+6y+=+4
Use eq. 1,
15x%2By=30
y=30-15x
Substitute into eq. 2,
x%2B6%2830-15x%29=4%7D%7D%0D%0A%7B%7B%7Bx%2B180-90x=4
-89x=-176
highlight%28x=176%2F89%29
Then from the previous equation,
y=30-15x
y=30-%2815%28176%29%29%2F89
y=%282670-1640%29%2F89
highlight%28y=30%2F89%29