Fungsi f dirumuskan f(x)= -2x +m, sedangkan diketahui f(3)= 4. Besar m adalah? •Tolong dijawab...

f(x) = -2x + m
f(3) = -2(3) + m
4 = -6 +m
4+6 = m
m = 10

f(x) = -2x + m

f(3) = -2(3) + m = 4
-6 + m = 4
m = 4 + 6
m = 10