suatu fungsi f ( x )=3x + 2,g ( x )=9 - 1/2 x . jika f ( x )=g ( x ) tentukan nilai x !

f(x) = 3x + 2
g(x) = 8 - x/2

f(x) = g(x)
3x + 2 = 9 - x/2
3x + x/2 = 9 - 2
7x/2 = 7
x = 7 . 2/7
x = 2

f(x)=g(x)
3x +2= 9 -1/2x
3,5x = 7
x = 2