Question

rezolvati in R ecuatia​

Answer 1

Răspuns:

9(x-3)-4(7-3x)=5-3x

9x-27-28+12x=5-3x

21x+3x=5+55

24x=60

12x=30

6x=15

2x=5

x=5/2

x=2,5

Answer 2

Răspuns:

Elimini parantezele:

9x-27-28+12x=5-3x

Redu termenii asemenea:

9x+12x=21x

-27-28=-55

21x-55=5-3x

Muta termenii:

21x+3x=5+55

24x=60

x=60/24

Simplifica fractia prin 13

x=5/2