SOLUTION: 4x-5y=11
x+2y=7
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Question 241396: 4x-5y=11
x+2y=7
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
4x-5y=11
-5y=-4x+11
y=-4x/-5+11/-5
y=4x/5-11/5 (red line)
x+2y=7
2y=-x+7
y=-x/2+7/2
y=-x/2+7/2 (green line)
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 4x/5 -11/5 and -x/2 +7/2).
4x-5y=11
x+2y=7 multiply this equation by -4 & add
-4x-8y=-28
4x-5y=11
----------------
-13y=-17
y=-17/-13
y=17/13 or 1.3 ans.
x+2*17/13=7
x+34/13=7
x=7-34/13
x=4.38 ans.
Intercept (4.38,1.30)
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