Posted by Nicole on Sunday, October 27, 2013 at 3:46pm.
My equation
Y=4Y+30
I did;
Y4Y=3Y
My equation
3Y=30>30/3
I get 10
yet the checking does not work.
Does the negative go on the whole 3Y or just the 3?

Math  Jai, Sunday, October 27, 2013 at 4:22pm
Your solution and answer are actually correct. :)
Let's do the checking part:
Y = 4Y + 30
if Y = 10,
10 = 10(4) + 30
10 = 40 + 30
10 = 10
Since both sides of the equation are equal, then Y is indeed equal to 10.
Hope this helps :3

Math  Nicole, Sunday, October 27, 2013 at 4:29pm
I don't have to make it positive?

Math  Jai, Sunday, October 27, 2013 at 5:12pm
No, you don't have to.
30 / 3 = 10
Here, 10 is positive because both 30 and 3 are positive.
30 / 3 = 10
While here, one of them is negative so the answer must also be negative.
*Note that if however, both 30 and 3 are negative, the answer is positive.
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