The lifespan of a black bear is 3 years longer than the lifespan of a zebra. Write an addition equation that you could use to find the lifespan of a zebra.

Question

Average Lifespans of Animals Animal Lifespan (yr) Animal Lifespan (yr) Black bear 18 Guinea pig 4 Puma ? Zebra ?

Answer 1

Math is the least of my skills, but I am thinking:

z+3=b

z meaning the lifespan of the zebra and b meaning the life span of the bear.