Odpowiedź :
1)
f(x) = -2x + 6
-2x + 6 = 0
-2x = -6 / : (-2)
x = 3
2)
f(x) = 3/4x + 1
3/4x + 1 = 0
3/4x = -1
x = -4/3
3)
f(x) = -4/7x + 2/3
-4/7x + 2/3 = 0
-4/7x = -2/3 / * (-7/4)
x = 7/6
1)
f(x) = -2x + 6
-2x + 6 = 0
-2x = -6 / : (-2)
x = 3
2)
f(x) = 3/4x + 1
3/4x + 1 = 0
3/4x = -1
x = -4/3
3)
f(x) = -4/7x + 2/3
-4/7x + 2/3 = 0
-4/7x = -2/3 / * (-7/4)
x = 7/6