Question 363287
a.  m = aP-w for a
Write it:
aP - w = m
add w to both sides
aP = m + w
divide both sides by P
a = {{{((m+w))/P}}}
: 
b.  2x – 3 = ax for x
Subtract ax from both sides
2x - ax - 3 = 0
add 3 to both sides
2x - ax = 3
Factor out x
x(2-a) = 3
Divide both sides by (2-a)
x = {{{3/((2-a))}}}