Răspuns :
3x-x=-1/3+3/5(prima o amplifici cu 5 si a 2-a cu 3)
2x=-5/15+9/15
2x=4/15
x=4/15
x=4/15:2
x=4/15x1/2
x=4/30
x=0,1(3)
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2x=-5/15+9/15
2x=4/15
x=4/15
x=4/15:2
x=4/15x1/2
x=4/30
x=0,1(3)
SPER CA TE-AM AJUTAT!