Question

| x + 4/15 | - | -3,75 | = - | - 2,15 |

Answer 1

\(\left|x+\frac{4}{15}\right|-\left|-3,75\right|=-\left|-2,15\right|\)

\(\left|x+\frac{4}{15}\right|-3,75=-2,15\)

\(\left|x+\frac{4}{15}\right|=-2,15+3,75\)

\(\left|x+\frac{4}{15}\right|=1,6\)

+) \(x+\frac{4}{15}=16\)

\(\Rightarrow x=\frac{236}{15}\)

+) \(x+\frac{4}{15}=-16\)

\(\Rightarrow x=-\frac{244}{15}\)

Answer 2

| x + 4/15 | - | -3,75 | = - | - 2,15 |

|x+4/15| - 3,75 = - 2,15

|x+4/15| = 1

TH1:

x+4/15 =1

x= 11/15

TH2:

x+ 4/15 = -1

x= -19/15

Vậy x=11/15 và x= -19/15

Answer 3

X= 4/3

Nhớ K mk nhe!!!