solve the equation for the indicated variable.

Question

B= 690y/h^2 for y

Answer 1

Bh^2 = 690y

(Bh^2)/690 = y

Answer 2

In order to solve for y, remember that solving for a variable just means getting it by itself on one side. The other letters in the equation get treated exactly like numbers, so do not let them throw you off.

We are starting with:

B = 690y/h^2

If you notice, y is being multiplied by 690 and divided by h^2, so we undo those one at a time. Lets get rid of the h^2 on the bottom first by multiplying both sides by h^2:

Bh^2 = 690y

The h^2 cancels on the right side, which is exactly what we wanted. Now y is only being multiplied by 690, so we can divide both sides by 690 to finish isolating it:

Bh^2/690 = y

So, our final answer is y = Bh^2/690.