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solutia ecuatiei)
5(x-2)-2x+3(x+1)=6+7x


Răspuns :

5x-10-2x+3x+3=6+7x
6x-7=6+7x
6x-7x=6+7
-x=13
x=-13
5(x-2)-2x+3(x+1)=6+7x
5x-10-2x+3x+3=6+7x
5x-2x+3x-7x=6+10-3
-x=13
x=-13