Răspuns :
1). 2(x+1)+1=x+15
2x+2+1=x+15
2x-x= -2-1+15
x=-3+15
x=12
sau
2). 2(x+1)+1=x+15
2x+2+1=x+15
2+1-15= -2x+x
-12=x
x={+12;-12}
nu stiu daca e corect :)
2x+2+1=x+15
2x-x= -2-1+15
x=-3+15
x=12
sau
2). 2(x+1)+1=x+15
2x+2+1=x+15
2+1-15= -2x+x
-12=x
x={+12;-12}
nu stiu daca e corect :)