Question

Find the value of x.
x + 3
12

Answer 1

9

Explanation:

x + 3 = 12 (both sides of triangle are equal, because angles are equal)

x= 12 - 3

x = 9

Answer 2

x=9

Explanation:

12=x+3

9=x

you set the sides equal to eachother bc they have the same angles!