Question

Solve for y.

x+a=yb

I don't understand what I'm supposed to do?

Answer 1

If you want to solve for "y", it means you want to make "y" the subject :)
So we want to end up with something like y = ..........
Since we have:
yb = x + a
What should we divide both sides by to get "y = ...." ?

Answer 2

The answers are

A) y=x+a-b
B) y=-(x+a)/b
C) y=(x+a)/b

Answer 3

Divide which sides by y?

Answer 4

\[yb = x + a \]
Therefore we know that "yb" means "y TIMES b" right? :)
So if we want a "y" by itself, we need to divide BOTH sides by "b" and we'll end up with something that looks like this:
\[\frac{ yb }{ b } = \frac{ x + a }{ b }\]
On the left side of the equal sign the b's will cancel out and leave us with:
\[y = \frac{ x+a }{ b }\]

Answer 5

Oh! I get it now. Thank you

Answer 6

excellent! :) No worries!