Question

Zach is 4 years older than twice his sister Maya’s age. Maya is 5 years old.

Answer 1

Zach would be 14 years old I believe

Answer 2

Z = Zach's age
M = Maya's age

Z = 4 + 2m    Plug in 5 for m
Z = 4 + 2(5)   Multiply
Z = 4 + 10      Add
Z = 14

Zach is 14 years old.