Answer:
x=-6
Step-by-step explanation:
first we want to find the missing angle inside of the triangle. To do that we subtract the angles that are given by 180 because all of the angles in a triangle should add up to equal 180
180-64-27=89
the angles outside of the triangle and the angle that equal 89 should also add up to equal 180 so we setup an equation
89+97+x=180
step 1 combine like terms
186+x=180 step 2 subtract each side by 186
x=-6 hope this helps (;
