Juan thinks that the graph of 6y + 12x = 4 is a line. a. Solve Juan’s equation for y.
2 answers:
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Consider, 
. Let's say 
then the problem reduces to 
. (Do you understand this step?)
So then replacing a again with our definition we get,
.
So then replacing a again with our definition we get,
In this question , we have to simplify the given ratio, which is
12xy:3x
First we have to see which factor is common in numerator and denominator,
We can write 12 as 3 times 4, that is
So the common factor is 3x.
In the next step, we cancel out 3x
And that's the required simplified form .