Question

Please help me (geometry)

Answer 1

x=7

Explanation:

The 2 given angles are vertical to each other, so that means they are equal to each other.

To solve, set up an equation:

`7x+9=8x+2`

Solve by isolating the variable. [Subtract and divide]

`7x=8x-7`

`-x=-7`

Multiply both sides by -1 to get rid of the negative sign.

`x=7`

I hope this helps!

Answer 2

x = 7

Explanation:

When two parallel lines are cut by a transversal, the corresponding angles are equal.

8x +2 = 7x + 9

Subtract 2 from both sides

8x = 7x + 9 - 2

8x = 7x + 7

Subtract 7x from both sides

8x - 7x = 7

x = 7