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Calculati ecuatia:

0,2*x-2,6=1,2


Răspuns :

[tex]0,2x=1,2+2,6 \\ x=3,8:0,2 \\ x=19[/tex]
2/10*x-26/10=12/10
simplifici;
x/5-13/15=6/5
(x-13)/5-6/5=0
(x-13)-(6)/5 =x-19/5
x-19/5=0
x-19/5 * 5=0*5
x-19=0
x==19