# Math

posted by .

Sorry!
I have another problem!

4-2y=4y
I always get a bit confused if there's a minus sign in front of a number.
The book says the answer is 2/3
So what I first did was.
4-2y=4y
4=6y
which is 1 1/2, and wrong.?

• Math -

4=6y
divide both sides by 6
2/3=y

• Math -

4-2y=4y

4 - 2y + 2y = 4y + 2y
4 = 6y

Here you need to divide by sides of the equation by 6.

4/6 = y

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