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NR X PT CARE X+1 SUPRA 6=6 SUPRA 9

Răspuns :

x+1/6=6/9 => 9(x+1)=6•6
=>9x+9=36 9x=36-9 9x=27 => x=3
x+1/6=6/.9
3x+3/18=12/18
3x/18=12-3/18
3x/18=9/18
6x=2
x=3