7x - 4 = x + 2 |+4 |+4 V VJak to zrobić?
7x-4+4=x+2+4
7x=x+6
6x=6/:6
x=1
7x-4=x+2 /+4
7x-x=6
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7x-4+4=x+2+4
7x=x+6
6x=6/:6
x=1
7x-4=x+2 /+4
7x=x+6
7x-x=6
6x=6/:6
x=1