Question

Rezolvati ecutia in multimea de numere naturale: 3(x+2)-1=x+7.

Answer 1

3(x+2)-1=x+7
3x+6-1=x+7/-x
2x+6-1=7/+1
2x+6=8/-6
2x=2/:2
x=1

Answer 2

3(x+2)-1=x+7 3x+6-1=x+7 |-x 2x+5=7 2x=7-5 2x=2 X=1