Answer:
21
Step-by-step explanation:

subtract 3t from both sides

multiply both sides by 3

so 6t = -21
15/7 might be the answer I’m not sure
Answer:
y=-2x+5
Step-by-step explanation:
slope is going down 2 over 1
y-int is 5
yes because you do the opposite so it would not be a function
for the value of
we have the function f(x) = 1/(x-2) or
as undefined or not defined .
<u>Step-by-step explanation:</u>
<u>Function undefined: </u> A function is undefined when it gives results which are not defined for example , infinity .
Here we have , Function f(x) = 1/(x-2) or
. We need to find a value of for which this is not defined . Let's find out:
We can clearly see that it's a fractional function with numerator as 1 and denominator as x-2 . For a fractional function to be undefined it's denominator must be zero i.e. x-2 = 0 or 
⇒ 
⇒ 
⇒ 
Therefore, for the value of
we have the function f(x) = 1/(x-2) or
as undefined or not defined .