Question

jane's age is 5 years less than 3 times her brothers age. jane is 11 minus her brothers age. how old is jane?

Answer 1

Explanation:

Let x represent Jane's age

Let y reprsent her brother's age

x=3y-5

x=11-y

subtract

0=4y-16

-4y=-16

y=4

plug back into equation

x=3y-5

x=3(4)-5

x=7