Answer:
see below
Explanation:
the figure shows that GF = FH
so 5x+26 = ∠H
because sum of all angles in a triangle =180 (memorize this)
so then you have 2*(5x+26) + 3x+37 =180
solve for x
10x + 52 +3x +37 =180
13x = 91
x=7
so 5x+26 = 35+26 = 61
3x+37 =21+37 =58