Answer:
x=18
Step-by-step explanation:
the sum of all the angles in a triangle is 180 degrees.
we can use this to get an equation:
5x-6 + 3x+13 + 2x-7 = 180
combine the x's to get:
10x-6-7+13=180
combine the numbers to get:
10x=180
divide both sides by 10 to get your answer:
x=18
