Question

/x/ = /-5/ - /-10/ + 15

/x/= -(-12) + (-15) + 8

/x/ = -8 + ( 5-9) - 5 + 8

Answer 1

\(\left|x\right|=\left|-5\right|-\left|-10\right|+15\)

\(\Rightarrow\left|x\right|=5-10+15\)

\(\Rightarrow\left|x\right|=10\)

\(\Rightarrow x=\pm10\)

\(\left|x\right|=-(-12)+(-15)+8\)

\(\Rightarrow\left|x\right|=+12+(-15)+8\)

\(\Rightarrow\left|x\right|=12+(-15)+8\)

\(\Rightarrow\left|x\right|=(-3)+8\)

\(\Rightarrow\left|x\right|=5\)

\(\Rightarrow x=\pm5\)

Bài dưới tương tự

Answer 2

|x|=|−5|−|−10|+15

⇒|x|=5−10+15

⇒|x|=10

⇒x=±10

|x|=−(−12)+(−15)+8

⇒|x|=+12+(−15)+8

⇒|x|=12+(−15)+8

⇒|x|=(−3)+8

⇒|x|=5

⇒x=±5