There are 2 numbers that are 3 units from -6, it can be either from the left, in that case it would be -9, or to the right would be -3.
F(C) = 9/5C + 32
I'll just change F(C) to y and 9/5C to 9/5x.
y = 9/5x + 32
inverse...
x = 9/5y + 32
9/5y = x - 32
y = 5/9x - 160/9
Sooooo
F(C) = 5/9C - 160/9
Answer: 21
Step-by-step explanation: 21 + 21 = 21
Hello there!
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.


Hope this helps! :)
~Zain