Answer:
x = 10
Step-by-step explanation:
Sum the 3 sides and equate to 58
6x + 10 + x + 3 - 2x - 5 = 58 , that is
5x + 8 = 58 ( subtract 8 from both sides )
5x = 50 ( divide both sides by 5 )
-2 1/2