Answer:
add the equations together
Step-by-step explanation:
4 ways of solving one-step equations: Adding, Substracting, multiplication and division.
I hope this helps you
68,25=(9+12).h/2
2.68,25=21.h
136,5/21=h
h=6,5
what are you trying to find or how long did the worker work
I know my math and your answer is going to be A.