Answer:
Step-by-step explanation:
we have the triangle GHJ
If the segment side GH is equal to the segment JH
then
The triangle GHJ is an isosceles triangle
Remember that
An isosceles triangle has two equal interior angles and two equal sides
so
m∠G=m∠J
we have
m∠G=(7x+5)°
m∠J=(x+47)°
equate the equations
(7x+5)°=(x+47)°
Solve for x