acw+cz=y for a

[math_celebrity]

acw+cz=y for a

Solve this literal equation:

Subtract cz from each side:
acw + cz - cz = y - cz

Cancel the cz on the left side:
acw = y - cz

Divide each side by cw to isolate a:
acw/cw = (y - cz)/cw

Cancel cw on the left side:
a = (y - cz)/cw