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2(2x+7) +3(x-1)=6(x+3)-18

Răspuns :

Răspuns:

4x+14+3x-3=6x+18-18

4x+3x-6x=18-18-14

1x=-14

x=-14×1

x=-14

4×(-14)+14+3×(-14)-3=6×(-14)+18-18

2(2x+7)+3(x-1)=6(x+3)-18

4x+14+3x-3=6x+18-18

7x+11=6x

6x-7x=11

-x=11

x= -11