Question

Rezolvati in multimea Z ecuatia 3[2(5I2x-1I-13)-17]-49=32.

Answer 1

3[2(5|2x-1|-13)-17]-49=32
3[2(5*2x-1-13)-17]-49=32 |+49
3[2(5*2x-1)-13]=81 |:3
2(5*2x-1)-13=27 |+13
2(5*2x-1)=40 |:2
5*2x-1=20 |+1
5*2x=21 |:5
2x=4,2 |:2
x=2,1

.
.
.
.
.
Sper ca e bine acum!!  Astept coroana:))!!

Answer 2

 3[2(5|2x-1|-13)-17]-49=32    3[2(5*2x-1-13)-17]-49=32 |+49  ,3[2(5*2x-1)-13]=81 |:3   ,2(5*2x-1)-13=27 |+13  ,2(5*2x-1)=40 |:25*2x-1=20....