Question

Aflati "X" din: ( 3 x X + 2) : 4 -2 = 3 ;

Answer 1

  (3 x X + 2 ) : 4 _ 2 = 3
( 3 x X + 2 ) : 4 = 3 + 2
( 3 xX + 2 ) : 4 = 5
( 3 x X + 2 ) = 5 x 4
( 3 x X + 2 ) = 20
3 x + 2 = 20
3x = 20 - 2
3x = 18
x = 18 : 3
x = 6

Answer 2

$(3 \cdot x+2):4-2=3 \\ (3x+2):4=3+2 \\ (3x+2):4=5 \\ 3x+2=4 \cdot 5 \\ 3x+2=20 \\ 3x=20-2 \\ 3x=18 \\ x= \frac{18}{3} \\ \Rightarrow \boxed{x=6}.$