Question

Rezolvati in Q ecuatiile:

a) 2/3 x intregi - 1/5 =3/10

b) x/2 - 4x/3 + 7x/6 = 7
E URGENT

Answer 1

Răspuns:

Explicație pas cu pas:

a) 2x/3 - 1/5 = 3/10

2x/3 = 1/5 + 3/10 = 2/10 + 3/10 = 5/10 = 1/2

x = 3/4

_____________

b)

x/2 - 4x/3 + 7x/6 = 7

3x/6 - 8x/6 + 7x/6 = 7

2x/6 = 7

x/3 = 7

x = 21