soconfusion soconfusion

23-05-2018
Mathematics

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solve the system of two equations 2y=8 and 15y=2x-4

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sqdancefan sqdancefan

25-05-2018

To find y, divide the first equation by 2.
y = 4

To find x, use that value for y in the second equation. Add 4, then divide by 2.
15·4 = 2x -4
60 +4 = 2x
64/2 = x = 32

The solution is (x, y) = (32, 4).

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