Answer:
Space in inches= 22 inches
Explanation:
bedroom wall is 138 inches inches inches wide.
want to hang two posters, each 36 inches inches across, with an equal space between each poster and the wall edges
Total space remaining= 138-(36*2)
Total space remaining=138-72
Total space remaining= 66
To hang the posters to have equal spacing from the egde and between each other, let's bear in mind that we have 3 partions..
Space in inches= 66/3
Space in inches= 22 inches