Question

Solve 5ax + 3 ax = 4ax + 12 for x. Assume a + 0. A. x= 3a 3 O B. 1 c. F D. X= a a

Answer 1

So we have to solve the equation:

`5ax+3ax=4ax+12`

Knowing that a isn't zero. Let's start:

`\begin{gathered} 5ax+3ax=8ax=4ax+12 \\ 8ax-4ax=12 \\ 4ax=12 \end{gathered}`

Then, since a isn't zero we can divide the right side of the equation by 4a:

`x=(12)/(4a)=(3)/(a)`

So correct option is B.