Question

Rezolvati
e) | x+3|=1;
f) |x-7 |=10.
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Answer 1

Răspuns:

e) $\left|x+3\right|=1=>x+3=1\ si\ x+3=-1=>x=-2\ si\ -4$

f)  $\left|x-7\right|=10=>x-7=10\ si\ x-7=-10=>x=17\ si\ x=-3$