SOLUTION: first - x + y = 4 second - 2x-y = 5

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Question 374062: first - x + y = 4
second - 2x-y = 5

Answer by jokaehler(26) About Me  (Show Source):
You can put this solution on YOUR website!
You want to use the substitution property here.


Get the first equation to get as to an "x=..." or "y=..."


So, rewrite the first equation to be in slope-intercept form. y= -x+4


Substitute this equation in on the second equation


2x-(-x+4)=5

Simplify:

3x+4=5

3x=1

x=1/3


Now plug in your answer on one of the original equations.


(1/3) + y = 4

y = 4 - (1/3)

y = 32%2F3


Therefore:


x = (1/3)

y = 32%2F3



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