#1**+3 **

Rearrange w = 3(2a + b ) - 4 to make *a* the subject.

w = 3(2a + b) - 4

Add 4 to both sides of the equation.

w + 4 = 3(2a + b)

Divide both sides of the equation by 3 .

(w + 4)/3 = 2a + b

Subtract b from both sides.

(w + 4)/3 - b = 2a

Divide both sides by 2 .

[ (w + 4)/3 - b ] / 2 = a

a = [ (w + 4)/3 - b ] / 2

hectictar
Nov 18, 2017