Question

Find (x+55)°
find (3x-5)°
find x

Answer 1

You would get

x=40

Your answer

Answer 2

x = 30

Explanation:

The two angles are congruent so they have the same value

3x-5 = x+55

Subtract x from each side

3x-5 -x = x+55-x

2x-5 = 55

Add 5 to each side

2x-5+5 = 55+5

2x= 60

Divide each side by 2

2x/2 = 60/2

x = 30