Answer:
x = 19
Step-by-step explanation:
To solve for x, set f(x) equal to the output value, hence
- [tex]\frac{1}{3}[/tex] x + 7 = [tex]\frac{2}{3}[/tex]
Multiply all terms by 3 to eliminate the fractions
- x + 21 = 2 ( subtract 21 from both sides )
- x = - 19 ( multiply both sides by - 1 )
x = 19
