Odpowiedź :
-7x - 12 = 3
-7x = 3 + 12
-7x = 15/:(-7)
x = -15/7
x = -2 1/7
1/3x + 4 = 5
1/3x = 5 - 4
1/3x = 1/*3
x = 3
6x - 2/3 = 1/3
6x = 1/3 + 2/3
6x = 1 / : 6
x = 1/6
12 - 2x = 5
-2x = 5 - 12
-2x = -7 / :(-2)
x = 7/2
x = 3 1/2
x = 3,5
14x - 6 = 20
14x = 20 + 6
14x = 26 / : 14
x = 26/14
x = 1 12/14
x = 1 6/7
Mam nadzieję, że pomogłam! :)
-7x = 3 + 12
-7x = 15/:(-7)
x = -15/7
x = -2 1/7
1/3x + 4 = 5
1/3x = 5 - 4
1/3x = 1/*3
x = 3
6x - 2/3 = 1/3
6x = 1/3 + 2/3
6x = 1 / : 6
x = 1/6
12 - 2x = 5
-2x = 5 - 12
-2x = -7 / :(-2)
x = 7/2
x = 3 1/2
x = 3,5
14x - 6 = 20
14x = 20 + 6
14x = 26 / : 14
x = 26/14
x = 1 12/14
x = 1 6/7
Mam nadzieję, że pomogłam! :)
Odpowiedź:
-7x - 12 = 3 -7x = 3 + 12 -7x = 15 / : (-7) x = -15/7 x = -2 1/7
1/3x + 4 = 5 1/3x = 5 - 4 1/3x = 1 / · 3 x = 3
6x - 2/3 = 1/3 6x = 1/3 + 2/3 6x = 1 / : 6 x = 1/6
12 - 2x = 5 -2x = 5 - 12 -2x = -7 / : (-2) x = 7/2 x = 3 1/2 x = 3,5
14x - 6 = 20 14x = 20 + 6 14x = 26 / : 14 x = 26/14 x = 1 12/14 x = 1 6/7