Question

mă puteti ajuta ,va rog e urgent!! am nevoie, urgent !!dau coroana​

Answer 1

Sper că te-am ajutat!

..

Answer 2

Răspuns:

a. 2(2x+5)-9=13

4x+10-9=13

4x=13-10+9

4x=12

x=12:4

x=3

b.42-5(2x-9)=27

42-10x+45=27

-10x=27-42-45

-10x=-60

x=60÷10

x=6

c.3[2(2x-3)-9]-8=7

3[4x-6-9]-8=7

12x-18-27-8=7

12x=7+18+27+8

12x=60

x=60÷12

x=5

d.3(4x-5)+32=27+2(3x-2)

12x-15+32=27+6x-4

12x-6x=27-4+15-32

6x=6

x=6÷6

x=1