Explicație pas cu pas:
a)
x+1/(1+ 1/2)=(7/3 - 1)/(3-3/2)
=x+1/(3/2)=(4/3)/(3/2)
=(x+1)×(2/3)=(4/3)×(2/3) impartim toata ec la 2/3
=>x+1=4/3
=>3x+3=4
=>3x=1 =>x=1/3
b)
(2x+1)/(4x+3)=1/3
=>3(2x+1)=4x+3
=>6x+3=4x+3
=>6x-4x=3-3=0 =>x=0
