• Problem:
Write an expression for the following. Write your answers on a sheet of paper.
1. your age less three
2. your age plus nine
3. your age plus twice your age
4. thrice your age
5. your age 6 years from now
• Answer:
1. your age less three
[tex] \large \boxed{ \tt 3 - x}[/tex]
2. your age plus nine
[tex] \large \boxed{ \tt x + 9}[/tex]
3. your age plus twice your age
[tex] \large \boxed{ \tt x + 2x}[/tex]
4. thrice your age
[tex] \large \boxed{ \tt 3x}[/tex]
5. your age 6 years from now
[tex] \large \boxed{ \tt x + 6}[/tex]
Suppose that your current age is 12 and that's the value of x. Thus,
[tex] \large \boxed{ \tt 1) \: 3 - x = 3 - 12 = - 9}[/tex]
[tex] \large \boxed{ \tt 2) \: x + 9 = 12 + 9 = 21}[/tex]
[tex] \large \boxed{ \tt 3) \: x + 2x = 12 + 2(12) = 36}[/tex]
[tex] \large \boxed{ \tt4) \: 3x = 3(12) = 36}[/tex]
[tex] \large \boxed{ \tt 5) \: x + 6 = 12 + 6 = 18}[/tex]
