Question

a=4w-3 make w the subject

Answer 1

It is a variable which is expressed in terms of other variables involved in the formula.

Formulas are written so that a single variable, the subject of the formula is on the L.H.S. of the equation. Everything else goes on the right side of the equation. We evaluate the formula by substituting for the literal numbers on the right hand side.

For example:

In the formula v = u + at, v is the subject.

To find v in the example, we substitute the values u, a and t in the R.H.S. of the equation.

Answer 2

$a = 4w - 3 \\ a + 3 = 4w \\ \frac{(a + 3)}{4} = w$

hope it helps!!