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-17×(x+13)=0 rezolvarea

Răspuns :

x+13=0÷(-17)
x+13=0
x=0-13
x=-13
-17(x+13)=0
-17x-221 =0
-17x =221
-x =13
x = -13
verif  ;-17 ( -13 +13 )=221 -221 =0