Question

Rezolvati ecuatiil; a) 1 supra2 ori x - 1 supra3 =1 supra 3 ori x; b)1 supra 2[1 supra (1 supra 2 x-1)-1]+1= 5 supra4.

Answer 1

a) 1/2×x - 1/3 =1/3 × x
1/2×x + 1/3 ×x =1/3
x(1/2+1/3)=1/3
x(3/6+2/6)=1/3
x ×5/6=1/3
x=1/3 : 5/6
x=1/3×6/5=2/5=0,4

b)1/2[1 /(1/2 x-1)-1]+1= 5/4.
1/2[1 /(1/2 x-1)-1]= 5/4-1
1/2[1 /(1/2 x-1)-1]= 5/4-4/4
1 /(1/2 x-1)-1= 1/4 : 1/2
1 /(1/2 x-1)-1= 1/4 × 2/1
1 /(1/2 x-1)= 1/2 +1
1 /(1/2 x-1)= 1/2 +2/2
1 /(1/2 x-1)= 3/2
1×2=3(1/2 x -1)
1/2 x-1= 2/3
1/2 x=2/3 +1
1/2 x=2/3+3/3
1/2 x=5/3
x=5/3 :1/2=5/3 ×2/1=10/3=3,(3)

Answer 2

Poți să marchezi ca fiind cel mai bun răspuns