Răspuns :
i) 8x - 4 + 5x - 5 = 20x + 40
13x - 20x = 40 + 9
7x = 49
x = 49 : 7
x = 7
j) 7 - 7x + 12 - 18x + 3x = 5 - 15x
- 22x + 15x = 5 - 19
- 7x = - 14
x = 14 : 7
x = 2
13x - 20x = 40 + 9
7x = 49
x = 49 : 7
x = 7
j) 7 - 7x + 12 - 18x + 3x = 5 - 15x
- 22x + 15x = 5 - 19
- 7x = - 14
x = 14 : 7
x = 2
sper sa te ajute daka nu intelegi bine scrisul meu spunemi si eu iti descifrez.
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