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Find the value of x so that the function has the given value. f(x) = 6x + 9; f(x) = 21

Sagot :

Answer:

[tex] x = 2 [/tex]

Step-by-step explanation:

We need to find the value of x so that the value of given function becomes 21 .

We have ,

[tex]f(x)=21\\\\ f(x)= 6x + 9 [/tex]

Now , for finding x ,

[tex] 6x +9 = 21 \\\\ 6x = 21 -9 \\\\ 6x = 12 \\\\ x = 2 [/tex]

Answer:

x=2

Step-by-step explanation: