Question

What is the value of x in the equation: 3 (4x - 1) - 3x = - (x + 2)?

Give your final answer in Decimal form.

Answer 1

`-0.5`

Steps:

`(4x - 1) - 3x = - (x + 2)`

Start with the left side and combine like terms

`4x-1-3x=-(x+2)\\`

Combine
`4x` and
`-3x`. After doing this, you would have
`x` because 4-3 = 1

`x-1 =-(x+2)`

Then, you can distribute the negative on the right side

`-(x+2) = -(x)+-(2) = -x-2`

You would end up with

`x-1=-x-2`

Add x to each side.

`2x-1=-2`

Add 1 to each side

`2x=-1`

Divide each side by 2 to simplify.

`x=-1/2\\x = -0.5`