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I'm not sure how to solve the systems of equations problem below 9x-4y= -7 7x-12= 39 What does X equal? What does Y equal?

I'm not sure how to solve the systems of equations problem below 9x-4y= -7 7x-12= 39 What does X equal? What does Y equal?
asked 8.5k views
2 votes
I'm not sure how to solve the systems of equations problem below

9x-4y= -7
7x-12= 39

What does X equal?
What does Y equal?

asked
User Dongdong
by
8.3k points

1 Answer

1 vote
solve the lower equation first

+12 on each side
7x=51
divide by 7
x=51/7

then use that to solve the upper equation
answered
User Waris Shams
by
8.3k points
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