SOLUTION: can you please help me solve this: Solve the following system by substitution -2x=8y+18 -33=7y-4x

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Question 683910: can you please help me solve this:
Solve the following system by substitution
-2x=8y+18
-33=7y-4x
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
-2x = 8y+18

x = (8y+18)/(-2)

x = (8y)/(-2)+18/(-2)

x = -4y - 9


-------------------------------------------------------

-33 = 7y-4x

-33 = 7y-4(-4y-9)

-33 = 7y+16y+36

-33 = 23y+36

I'll let you finish. Once you have found the value of y, use it to find the value of x.
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