SOLUTION: {(y=4x-7)(y=9x-8) how would you find the answer to this using the substitution method X=________ Y=________

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Question 751569: {(y=4x-7)(y=9x-8)
how would you find the answer to this using the substitution method
X=________
Y=________

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
y=4x-7.......eq.1
y=9x-8........eq.2
____________________________substitute y from eq.1 in eq.2

4x-7=9x-8........eq.2....solve for x
8-7=9x-4x
1=5x
1%2F5=x or 0.2=x
now find y
y=4x-7.......eq.1
y=4%280.2%29-7
y=0.8-7
y=-6.2