SOLUTION: Solve using the substitution method 3x+5y=19 X=33-7y Having a hard time grasping the substitution method. Thanks!

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Question 604606: Solve using the substitution method
3x+5y=19
X=33-7y
Having a hard time grasping the substitution method. Thanks!
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve using the substitution method
3x+5y=19
x=33-7y
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The 2nd eqn is solved for x
Sub for x in the 1st eqn
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3x+5y=19
3(33-7y) + 5y = 19
Solve for y