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rezolvati in multimea Z ecuatiile:a)x-(-4)=-12. b)(5x+8)×8=-96. c) 6x-13=4x-25 Va rog urgent. Dau coronita!!!

Răspuns :

a)x-(-4)=12 x+4=12/-4 x=8 b)(5x+8)x8=96/:8 5x+8=12/-8 5x=4/:5 x=0,8 c)6x-13=4x-25/+25 6x+12=4x/-4x 2x+12=0/-12 2x=-12/:2 x=-6

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