Answer:
x=16⁰
Explanation:
I AM NOT QUITE SURE OF THE ANSWER, but they are vertically opposite angles which in turn means that they are equal.
so you can equate the two sums they have given.
3x-3 = 2x+13
Take the numerical terms onto the right hand side and the 'x-terms' to the left hand side.
3x-2x = 13+3
That would leave you with,
x=16⁰