m = $\frac{\mathrm{b}}{2}$ - t

Get rid of the fraction by multiplying both sides of the equation by the denominator (2)

2 x m = b - 2 x t
2m = b - 2t
2m + 2t = b
2t = b - 2m

Divide both sides by 2 so that t can stand alone.

t = $\frac{\mathrm{b\; -\; 2m}}{2}$

Divide both sides of the equation by πr² since its multiplying the h

Since the left hand side is equal to the right hand side, you can switch positions

ASSIGNMENT

Make r the subject of the relation V = πr²h.

SOLUTION

Since π and h are multiplying r², divide both sides by πr

Take square root of both sides so that the square root cancels the square power on top of the r