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Rezolvati ecuatiie, va rog ajutati-ma
-5x +3 = 2x +4;
4x-2=3x +3;
5x-3= -2x +3;

Dau coroana


Răspuns :

-5x +3 = 2x +4
-5x -2x = 4 - 3 
-7x = 1 
x = - 1/7 

4x-2=3x +3
4x - 3x = 3 +2 
x = 5 

5x-3= -2x +3
5x + 2x = 3 +3 
7x = 6 
x = 6/7 
1. -5x-2x=4-3
-7x=1
x=1/-7

2. 4x-3x=3+2
x=5

3. 5x+2x=3+3
7x=6
x=6/7