Question

rezolvati in Z ecuatiile: a) 17+x=-3 b)3-x=5 c) x:(-8)=7

Answer 1

[tex]a)17+x=-3=\ \textgreater \ x=-3-17=\ \textgreater \ x=-20\\ ~~~~proba:17-10=-3 \sqrt{} \\\\ b)3-x=5=\ \textgreater \ -x=5-3=\ \textgreater \ -x=2=\ \textgreater \ x=-2\\ ~~~~~~~~proba:3-(-2)=5 \sqrt{} \\\\ c)x:(-8)=7=\ \textgreater \ x=7*(-8)=\ \textgreater \ x=-56\\ ~~~~~~proba:-56:(-8)=7 \sqrt{} [/tex]

Answer 2

a)17+x=-3=>x=-3-17=-20; b)3-x=5=>x=3-5=-2; c)x:(-8)=7=>x=7•(-8)=-56