Question

Solve 3x − x + 2 = 12.

−5
4
7
5

Answer 1

Combine like terms:


`3x - x = 2x`

`2x + 2 = 12`

Subtract 2 from both sides:


`2x = 10`

Divide both sides by 2 to get x by itself:


`x = 5`

The value of x is 5.

Answer 2

Judging by the question I noticed that I can simplify the equation 3x-x+2=12 by one step.
The outcome of simplification should be 2x+2=12.

Next you must subtract 2 from both sides to isolate the x. The new equation should be 2x = 10.

Lastly you must divide both sides by 2, the answer you should get is x=5, D.