Mary is 5 years older than bob. if the sum of their ages is 39 write and solve an equation to find ages. me with a complete sentence and your solutions . explain how you got your answer and show your work. you very much because i really need this . just dont do it for the points

5x=39 x stands for the age of bob so 39/5 =7.8 which is rounded up to 8 and if you multiply 8 by 5 you get 40 but if you multiply 7.8 by 5 you get 39 so his age would be 7.8 years old.

Mary is 5 years older than Bob.
Mary is 22 and Bob is 17.

When you subtract 22 - 17, you will get 5. Mary and Bob are 5 years apart.

When you add 22 + 17, you'll get 39, which is the sum of their age.

The equation would be:
m + b = 39
M standing for Mary, B standing for Bob.

22+17= 39 would be the full equation.

M= 22
B= 17.

Sorry if this is confusing and doesn't help you that much, but I really hope it helped! :-)