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Bond [772]
3 years ago
14

4x-2y=12 -4x-9=54 How can you order a ladder?

Mathematics
1 answer:
blagie [28]3 years ago
3 0
Equations:

4x - 2y = 12
-4x - 9y = 54

Multiple them in both sides

4x - 2y - 4x - 9y = 12 + 54
-2y - 9y = 66
-11y = 66
y= -6

If y= -6 then put y in first or second equation.

I put it in first equation

4x - 2.(-6) = 12
4x + 12 = 12
x= 0

Therefore

(x,y) = (0, -6)
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Step-by-step explanation:

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