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rezolvati ecuatiile: -4x+16=-24, |2x+5|=13

Răspuns :

AnaMaria10001
-4x+16=-24
-4x=-24-16
-4x=-40
x=-40/4
x=-10

|2x+5|=13
2x+5=+-13

°2x+5=13
2x=13-5
2x=8
x=8/2
x=4

°2x+5=-13
2x=-13-5
2x=-18
x=-18/2
x=-9


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