Question

Sam is 3 years younger than Marco. Marco is 15 years old. How old is Sam? Let X represent Sam's age (there are 2 correct answers)

x + 15 = 3
x + 3 = 15
15 divided by x = 3
3 x = 15 15 - x = 3
thanks

Answer 1

X + 3 = 15 and 3 X = 15, 15 - X = 3

Answer 2

Correct options are:

X+3=15

and 15-X=3

Explanation:

Sam is 3 years younger than Marco.

Let X represent Sam's age

Then, Marco's age=X+3

Marco is 15 years old.

i.e. X+3=15

or 15-X=3

Hence, Correct options are:

X+3=15

and 15-X=3