Question

If angle ABC = angle DEF, m angle ABC= 3x-15, and m angle DEF= x+3/3, find the measure of each angle

Answer 1

3x－15＝x＋3/3
9x－45＝x＋3
9x－x＝3＋45
8x＝48
x＝6
∠ABC＝3×6－15＝3°
∠DEF＝6＋3/3＝3°

Hope my answer helped u :)