Question

Here is a easy one for 10 points

Answer 1

3x=90

x=30

Explanation:

Answer 2

x=30

Explanation:

The sum of interior angles in a triangle will always equal 180 degrees. Knowing this, we can set the following equation:

2x+x+90=180

3x+90=180

Subtract both sides by 90

3x+90-90=180-90

3x=90

Divide both sides by 3

3x/3=90/3

x=30

I hope this helps!