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Rezolvați ecuatiile in Q+ :
a) 15x-6 / 4 - 3x / 2 = 1

b) 6(3x - 2) + 5 = 17x - 2

c) 2,(3)x + 1intreg si 1/6 = 0, (6)x + 2intregi si 1/3

REPEDE VA ROG !!!


Răspuns :

a) (15x - 6)/4-3x/2= 1
15x - 6 - 6x = 2
9x = 4
x = 2/3, care apartine lui Q+

b) 18x - 12 + 5 = 17x - 2
18x - 17x = 12 - 5 - 2
x = 5, care apartine de Q+

c)23x/9+7/6=6x/9+7/3
46x+21=12x+42
46x-12x=42-21
34x=21
x=21/34 care apartine de Q+