Posted by **Keisha** on Wednesday, September 9, 2009 at 11:46am.

The functions f and g are defined by:

f:x 3x-2

g:x 2x+5

Evaluate:g(-6), fg(3)

g(-6)= 2(-6)+5= -7

fg(3)= 3(2x+5)-2

6x+15-2

6(3)+13 = 31

Evaluate f(x)=8, calculate the value of x

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