Odpowiedź:
a) 1/3x - 2 = x + 2 / -x, +2
1/3x - x = 4
-2/3x = 4 / :(-2/3)
x = -6
b) 1 - 6/7x = 4/7 /-1
-6/7x = -3/7 /:(-6/7)
x = 1/2
c) 6(1/4x - 2) = 18
3/2x - 12 = 18 /+12
3/2x = 30 /:3/2
x = 8
d) x/6 - 1/6 = 1 /+1/6
x/6 = 7/6 / *6
x = 7/6 * 6/1 = 7
e) -2(2x - 1) = x/3
-4x + 2 = x/3 /+4x
x/3 + 4x = 2 /*3
x + 12x = 6
13x = 6 /:13
x = 13/6
f) 2/5(3-x) = -2
6/5 - 2/5x = -2 / -6/5
-2/5x = -16/5 /:(-2/5)
x = 8
g) 3/4 (2 - 3x) = -6
3/2 - 9/4x = -6 /-3/2
-9/4x = -15/2 /:(-9/4)
x = 10/3
h) 1/5 (x - 3) = 9 - x
1/5x - 3/5 = 9 - x /+x, +3/5
6/5x = 48/5 /:6/5
x = 8
i) 0,6 + x
------------- = x + 1 /*2
2
0,6 + x = 2x + 2 /-0,6 , -2x
-x = 1,4 /*(-1)
x = -1,4
proszę<3
Szczegółowe wyjaśnienie:
