Zach is 4 years older than twice his sister maya’s age.
let m represent maya’s age.
which expression represents zach’s age?
m + 4
2m + 4
4m + 2
2m

2m + 4 
m + 4 
2m 
4m + 2 

Z = 2m + 4 ---> answer (no need explanation, you just have to analyze the sentence. Imagine zach is you and your younger sister is Maya to better understand) 

3. Solve the given problem. 

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

If Maya is 5 years old, how old is Zach? 

14 
9 
10 
22 

equation: 

Z = 2m + 4 = 2(5) + 4 = 14 years old ---> answer