\(-\left|x-6\right|=\left(63-\left|-176\right|+89\right)-\left(63+89\right)\)

\(-\left|x-6\right|=\left(63-176+89\right)-63-89\)

\(-\left|x-6\right|=\left(63-63\right)+\left(89-89\right)+\left(-176\right)\)

\(-\left|x-6\right|=-176\)

   \(\left|x-6\right|=176\)

\(\Rightarrow\orbr{\begin{cases}x-6=176\\x-6=-176\end{cases}\Rightarrow\orbr{\begin{cases}x=182\\x=-170\end{cases}}}\)

\(\Rightarrow x\in\left\{-170;182\right\}\)

\(-\left|x-6\right|=\left(63-\left|-176\right|+89\right)-\left(63+89\right)\)

\(\Rightarrow-1.\left|x-6\right|=\left(63-176+89\right)-\left(63+89\right)\)

\(\Rightarrow-1.\left|x-6\right|=-24-152\)

\(\Rightarrow-1.\left|x-6\right|=-176\)

\(\Rightarrow\left|x-6\right|=-176:\left(-1\right)\)

\(\Rightarrow\left|x-6\right|=176\)

+ TH1:

\(x-6=176\)

\(\Rightarrow x=182\)

+ TH2:

\(x-6=-176\)

\(\Rightarrow x=-170\)

Vậy x = 182 hoặc x =-170 

Chúc bạn học tốt !

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{35}\\{\,\,\,6}\end{array}}\\\hline{\,\,\,\,41}\end{array}\)                                       \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{47}\\{\,\,8}\end{array}}\\\hline{\,\,\,55}\end{array}\)

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{89}\\{\,\,2}\end{array}}\\\hline{\,\,\,91}\end{array}\)                                       \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{63}\\{\,\,9}\end{array}}\\\hline{\,\,\,72}\end{array}\)

Ta có \(\hept{\begin{cases}A+B+B+B=89\\A+A+B=63\end{cases}}\)

\(\Leftrightarrow\hept{\begin{cases}A+3B=89\\2A+B=63\end{cases}}\)

\(\Leftrightarrow\hept{\begin{cases}2A+6B=178\\2A+B=63\end{cases}}\)

\(\Leftrightarrow\hept{\begin{cases}5B=115\\2A+B=63\end{cases}}\)

\(\Leftrightarrow\hept{\begin{cases}B=23\\2A+23=63\end{cases}}\)

\(\Leftrightarrow\hept{\begin{cases}B=23\\2A=40\end{cases}}\)

\(\Leftrightarrow\hept{\begin{cases}B=23\\A=20\end{cases}}\)

Vậy \(A+B=20+23=43\)

Tính giá trị biểu thức bằng 1 cách hợp lí nhất nhé

a= 11 b=-110 c=24 d=-55 e=-3 g=100 h=161

trả lời:

39+47-63+97-18= 102 

320-34+65-23= 328

456-89+45-65+14= 361

trả lời:

39+47-63+97-18= 102 

320-34+65-23= 328

456-89+45-65+14= 361

*Ryeo*

a.251001

b.8281

c.998001

d.7921

e.249999

f.8096

g.10000

h.1080

số nguyên tố:89,97,139,79

hợp số: 63,125,2010