Question

5) Please solve the following equations (review problem) 5(x - 4) = 15x

Answer 1

`5(x-4)=15x`

To solve the given equation:

1. Divide both sides of the equation into 5:

`\begin{gathered} (5(x-4))/(5)=(15x)/(5) \\ \\ x-4=3x \end{gathered}`

2. Subtract x in both sides of the equation:

`\begin{gathered} x-x-4=3x-x \\ -4=2x \end{gathered}`

3. Divide both sides of the equation into 2:

`\begin{gathered} -(4)/(2)=(2x)/(2) \\ \\ \\ -2=x \end{gathered}`

Then, the solution for the given equation is x= -2