How do you solve the system of equations #y= 3x - 7# and #2x - 5y = 9#?

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Answer 1 · 2016-09-28T16:09:04

#x=2 and y =-1#

#y=3x-7" and "2x-5y=9#

Substitute for #y#

#2x-5(3x-7)=9#

Simplify #2x-15x+35=9#

Keep going and get #-13x=-26#

So #x=2#

Now find #y#

#y = 3x-7 " "rarr 3(2)-7#

#y = -1#