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Rezolvati in multimea N ecuatia: a) 60:(3y+2)=12. b)1-3(8x-4)=1

Răspuns :

[tex]\displaystyle a).60:(3y+2)=12 \\ 3y+2=60:12 \\ 3y+2=5 \\ 3y=5-2 \\ 3y=3 \\ y=3:3 \\ y=1 \\ b).1-3(8x-4)=1 \\ 1-24x+12=1 \\ -24x=1-1-12 \\ -24x=-12 \\ x= \frac{12}{24} \Rightarrow x= \frac{1}{2} [/tex]