Question

a) 5x-21=2x
b) 7x+48=-x
c) 30-3x=2x. va rog mult!! am nevoie urgent

Answer 1

Răspuns:

a) 5x-2x= 21

3x= 21 => x =7

b) 7x + x = - 48

8x= -48 => x= -6

c) 2x+ 3x= 30

5x= 30 => x = 6

Answer 2

Răspuns:

5x-21=2x

3x=21

x=7

7x+48=-x

8x= -48

x= -6

30-3x=2x

-5x= -30

x=6