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adoni [48]
3 years ago
9

What is the answer for -4x+4y=12 3x-4y=-18

Mathematics
1 answer:
Liula [17]3 years ago
6 0
Use elimination.

-x = -6
X = 6

-4 (6) + 4y = 12
Y = 9

(X,y)

(6,9) is the solution
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2 years ago
The ratio of the profit, material cost and production labour of an article is 5:7:13.
IRINA_888 [86]

Answer:

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Step-by-step explanation:

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7/25 × X = 13/25 × X + 840

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