Question

Rezolvatii in Q ecuatiile:
a) x+2=$\frac{1}{2}$
b) 2x-1=0
c) x:(0,5)=1
d) 3(2x+1)=1

Answer 1

a) x= 1/2 -2 = -3/2 ∈ Q
b) 2x= 1 ==> x = 1/2 ∈ Q
c) x:(0,5) = 1 ==> 2x = 1 ==> x = 1/2 ∈ Q
d) 6x + 3 = 1 ==> 6x = -2 ==> x = -1/3 ∈ Q