Question

Dau coroana, multumesc si 10 puncte!Rezolvati in multimea N ecuatia: a)3(1-2x)+8=32; b)60:(3y+2)=12 c)1-3(8x-4)=1 d)1605+4(3-x)=2011.Va rog ajutatima!

Answer 1

a) 3(1-2x)+8=32
3(1-2x) =32-8
=24
1-2x=24: 3
1-2x= 8
2x=8+1
2x=9
x=9: 2
x=4, 5
Iar la testul faci la f. Folosesti metodă invers exact cum am facut eu