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Ray Of Light [21]
3 years ago
14

What is the solution of y − 4x = 0 and 3x + 6y = 9?

Mathematics
1 answer:
Elden [556K]3 years ago
4 0
You solve this by plugging one equation into the other. Usually you have to rewrite one equation to make this work. In this case I choose to rewrite y-4x=0 as y=4x.

After plugging it into the second, you get:

3x + 6*4x = 9 => 27x = 9 => x=1/3

Putting this solution back into y=4x gives us y=4/3
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