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Emymangeorge
a fost răspuns

Va Rogg ! Cat de repede!
5.Rezolvati :

a)28:X= -7
b)4X-1=-9
c)10-2=3X-15

Răspuns :

[tex]\displaystyle a).28:x=-7 \\ x=- \frac{28}{7} \\ x=-4 \\ b).4x-1=-9 \\ 4x=-9+1 \\ 4x=-8 \\ x=- \frac{8}{4} \\ x=-2[/tex]
[tex]c).10-2=3x-15 \\ -3x=-15-10+2 \\ -3x=-23 \\ x= \frac{23}{3} [/tex]

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