👤

I2x-1I=7
I3x+2I=I2-xI
I2x-1I∠3
Va rog e urgent!


Răspuns :

Răspuns:

1.

2x-1=7

2x=7-1

2x=6

x=6/2

x=3

2.

3x+2=2-x

3x+x=2-2

4x=0

x=0

3.

2x-1< 3

2x=3+1

2x=4

x=2