Question

Va rog frumos ajutați-mă! Dau coroana! ​

Answer 1

Răspuns:

d)9x-6+10x-35=28

19x-41=28

19x=69 =>x=69/19

sau

6-9x+35-10x=28

41-19x=28

19x=13 =>x=13/19

e)2x-6+x+1=7

3x-5=7

3x=12 =>x=4

sau

6-2x-x-1=7

-3x+5=7

-3x=2 =>x=-2/3

f)3x-3=x-2-1

2x=0 =>x=0

sau

3-3x=2-x-1

-2x=-2 =>x=1

g)x-2+x+2=11-x-5

2x=6-x

3x=6 =>x=2

sau

2-x-2-x=11+x+5

-2x=16+x

-3x=16 =>x=-16/3

h)3x+1-5x-2+x-3=2

-x-4=2

-x=6 =>x=-6

sau

-3x-1+5x+2+3-x=2

x+4=2 =>x=-2