Question

find x if gff (x)=fgg (x), given f (x)=3x+1 and g (x)=x+3 ​

Answer 1

Answer:

x=1

Step-by-step explanation:

gff(x)=fgg(x)

so,by cross multiplication

f(x)=g(x)

(3x+1)=(x+3)

=(3x-x)=(3-1)

=2x=2

=x=1

Answer 2

Step-by-step explanation:

find x if gff (x)=fgg(x) given f(x)=3x+1&g( x)=x+3