Question

Rezolvati in R ecuatia :
a)2x-1=0
b)3-2x=o
$\frac{3}{x}$

Answer 1

a)2x-1=0
2x=1
X=1/2 (1supra2)
b)3-2x=0
-2x=-3
2x=3
X=3/2 (3supra2)

Answer 2

a)
2x-1=0
avand in vedere ca 2x-1+1=0+1 ⇒2x=0+1⇒2x=1
2x=1 ⇒ x=1/2

b) 3-2x=0
avand in vedere ca 3-2x-3=0-3 ⇒ -2x=0-3 ⇒-2x=-3
-2x=-3 ( - cu - =+ ) ⇒ x=3/2