SOLUTION: is this systen of equations:
-4x-2y=-4
3x-y=13
independent,dependent, or inconsistent
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Question 525574: is this systen of equations:
-4x-2y=-4
3x-y=13
independent,dependent, or inconsistent
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
-4x - 2y = 4
3x - y = 13
Use the 2nd equation for substitution
-y = - 3x + 13
Mult by -1
y = (3x-13)
:
Replace y with (3x-13) in the 1st equatio
-4x - 2(3x-13) = 4
-4x - 6x + 26 = 4
-10x = 4 - 26
-10x = -22
x = 22/10
x = 2.2
:
Find y
y = 3(2.2) - 13
y = 6.6 - 13
y = -6.4
:
You can check this solutions in the original equations
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