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rezolvati ecuatia in multimea Z
3x+17=-13
dau coroana


Răspuns :

3x+17=-13 <=> 3x= -13-17 <=> 3x= -30 <=> x= -30/3 <=> x= -10 <=> S={-10}
Sper ca te-am ajutat !
3x+7=-13
3×=-13-17
3×=-30
×=-30÷3
×=-10
S={-10}