Math 2 questions
posted by Miley .
Use the substitution method to solve each linear system:
x+3y+1=0
3xy+1=0
4x3y=13
2x+y=4
Please help, thanks:):)!!!!

In #1, substitute x=3y+1 into 2nd equation
in #2, substitute y=2x+4 into the 1st equation
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