Solve system of equations using substitution method

Algebra
Tutor: None Selected Time limit: 1 Day

y=3x+1

3y-7x=9

Ordered pair..if any

Sep 14th, 2015

Thank you for the opportunity to help you with your question!

For the substitution method, you can plug y=3x+1 into the second equation.

3(3x+1)-7x=9

9x+3-7x=9

2x=6

x=3

Now plug x back into first equation.

y=3(3)+1

y=9+1

y=10

(x,y) = (3,10)



Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 14th, 2015

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