Question

Tìm x.biet

/x+2/+/x+5/+/x+9/+/x+11/=5x

Answer 1

|x+2|+|x+5|+|x+9|+|x+11|=5x

Điều kiện 5x>=0 <=>x>=0

=>|x+2|+|x+5|+|x+9|+|x+11|=x+2+x+5+x+9+x+11=5x

4x+27=5x

x=27

Answer 2

|x+2|+|x+5|+|x+9|+|x+11|=5x

Điều kiện 5x>=0 <=>x>=0

=>|x+2|+|x+5|+|x+9|+|x+11|=x+2+x+5+x+9+x+11=5x

4x+27=5x

x=27

Answer 3

|x+2|+|x+5|+|x+9|+|x+11|=5x

Điều kiện 5x>=0 <=>x>=0

=>|x+2|+|x+5|+|x+9|+|x+11|=x+2+x+5+x+9+x+11=5x

4x+27=5x

x=27

Đã xog, bây h chỉ cần k nữa là ok

Answer 4

|x+2|+|x+5|+|x+9|+|x+11|=5x

Điều kiện 5x>=0 <=>x>=0

=>|x+2|+|x+5|+|x+9|+|x+11|=x+2+x+5+x+9+x+11=5x

4x+27=5x

x=27

Answer 5

|x+2|+|x+5|+|x+9|+|x+11|=5x

Điều kiện 5x>=0 <=>x>=0

=>|x+2|+|x+5|+|x+9|+|x+11|=x+2+x+5+x+9+x+11=5x

4x+27=5x

x=27

Answer 6

|x+2|+|x+5|+|x+9|+|x+11|=5x

Điều kiện 5x>=0 <=>x>=0

=>|x+2|+|x+5|+|x+9|+|x+11|=x+2+x+5+x+9+x+11=5x

4x+27=5x

x=27