Question

Rezolvați urmatoarele ecuatii!
A)2(x+2)+3(x-2)-2=3(6-5x)+3-5x
B)4/x=2/7

Answer 1

A)2x+4+3x-6-2=18-15x+3-5x

2x+3x+15x+5x=18+3-4+6+2

25x=25

x=25:25

x=1

B)x*2=7*4

2x=28

x=28:2

x=14

Answer 2

A)

2x+4+3x-6-2=18-15x+3-5x

5x-4=-20x+21

5x+20x=21+4

25x=25

x=25/25

x=1

B)

4/x=2/7

2x=4*7

2x=28

x=28/2

x=14