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Sa se rezolve ecuatia:
4-2(x+1) = 3x+17


Răspuns :

4-2x-2=3x+17
2-2x=3x+17
-2x-3x=17-2
-5x=15 =>x=(-3)
4-2x+2=3x+17
2-2x=3x+17
2-17=5x
-15=5x
x=3