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

Step-by-step 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

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

you can't solve x because it is 2 linear equation and you only have one equation