Question

The angles shown below are supplementary:

what is the value of x

Answer 1

`x=12`

Explanation:

By definition, supplementary angles add up to 180 degrees. Therefore, we can set up the follow equation to solve for
`x`:

`10x+60=180,\\10x=120,\\x=\boxed{12}`

Answer 2

x=12

Explanation:

Supplementary angles add up to 180 degrees.

10x+60=180

Subtract 60 from both sides:

10x=120

Divide 10 to both sides:

x=12