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b) 3×x+4=2×x+11
c) 2×(x+3)=6


Răspuns :

b) 3x-2x=4+11
x=15

c) 2x+6=6/-6
2x=0/:0
x=0
b)3x+4=2x+11
3x-2x=11-4
x=7
c)2(x+3)=6
x+3=3
x=0
Alta metoda
2x+6=6
2x=0
x=0
2~natural