Question

3 este solutia ecuatiei 2x-1/5=2 A/F
ecuatia 3x+2=5 are solutie in multimea A={-1,0,2}

Answer 1

2x3-1/5=2
5/5=2
1=2(F)
3X+2=5
3X=5-2
3X=3
X=3:3
X=1
NU ARE SOLUTIE

Answer 2

...<=>10x-1=10<=>10x=11<=>x=1,1  F
...<=>3x=3<=>x=1    F