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Rezolvati (2x+1)+(3x+6)=42
Repedr va rog corect.


Răspuns :

2x+1+3x+6 = 42
5x +7 =42
5x= 42-7
5x= 35
x= 35/5
x=7
(2x+1)+(3x+6)=42
2x+1+3x+6=42
5x+7=42 |-7
5x=35 |:5
x=7