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a fost răspuns

Aflati x∈Q:
a) -2x+4=-8
b)-6x+3-2x=-1
c)-5x+4=-10x-16
d)+10-3x+6=-2x

Răspuns :

Rontzica
a)
-2x=-8-4=>-2x=-12=>x=6
b)
-6x-2x=-1-3=>-8x=-4=>x=1/2
c)
-5x+10x=-16-4=>-5x=-20=>x=4
d)
10+6=-2x+3x=>x=16