Odpowiedź:
z.1
x + x + 13 = x / * 24
8 x + 3 x + 312 = 24 x
24 x - 8 x -3 x = 312
13 x = 312 / : 13
x = 24
==========
z.2
x - = / * 6
6 x - 3*( 6 x + 1) = 2
6 x - 18 x - 3 = 2
- 12 x = 5 / : (-12)
x = -
=========
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Odpowiedź:
z.1
x + x + 13 = x / * 24
8 x + 3 x + 312 = 24 x
24 x - 8 x -3 x = 312
13 x = 312 / : 13
x = 24
==========
z.2
x - = / * 6
6 x - 3*( 6 x + 1) = 2
6 x - 18 x - 3 = 2
- 12 x = 5 / : (-12)
x = -
=========
Szczegółowe wyjaśnienie: