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a fost răspuns

la ecuatii varog -16+x=28 x+(18)=-27 x+(-25)=-42 x+21=9 x+2010=-2009

Răspuns :

Slavitescudora
-15x=28
-x=28/15/*(-1)
x= -28/15

x= -27-18
x= -45

x-25= -42
x= -42+25
x= -17

x=9-21
x= -12

x= -2009-2010
x= -4019

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