Question

Rearrange w=3(2a+b)-4 can u please make a the subject of the formulae

Answer 1

I'll try to do each individual step, hopefully that'll clear it up
w= 3(2a+b)-4
w+4= 3(2a+b)
(w+4)/3 = 2a+ b
2a= ((w+4)/3) - b
a= (((w+4)/3) - b)/ 2

Answer 2

`a = (w)/(6) +(2)/(3) -(b)/(2)`

Explanation:

What is being done will be written in brackets on the right

w = 3(2a+b)-4

w + 4 = 3(2a+b) [4 is added on both sides of the equation]

w + 4 = 6a + 3b [the brackets on the right is expanded]

w + 4 - 3b = 6a [3b is subtracted on both sides of the equation]

w/6 + 4/6 - 3b/6 = a [both sides are divided by 6]

a = w/6 +2/3 - b/2