SAT Math Practice Question #20606 - SATify | SATify
#20606
equations
functions
easy
30 sec
Calculator OK
The function k is defined by k(x)=21x. For what value of x does k(x)=7?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.