Question

Rezolvati in multimea N ecuatia:3(1-2x)+8=32 ;60÷(3y+2)=12
1-3(8x-4)=1
1605+4(3-x)=2011

Answer 1

Răspuns:

3(1-2x)+8=32

3-2x+8=32

-2x=32-8-3

-2x=21/x(-1)

2x=-21

X=21:2

60:(3y+2)=12

60:3y+2=12

3y=12-2-60

3y=-50

Y=50:3

1-3(8x-4)=1

1-24x-12=1

-24x=1+12-1

-24x=12x(-1)

X+12:24

1605+4(31x)=2011

1605+124x=2011

124x=2011-1605

124x=406

X=406:124