ko cho kết quả sao tìm đc x

Tìm x mà ko cho kết quả sao tìm được?

\(\begin{array}{*{20}{c}}{a)\,\,}\\{}\\{}\end{array}\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{435}\\{352}\end{array}}\\\hline{\,\,\,787}\end{array}\)                           \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{236}\\{528}\end{array}}\\\hline{\,\,\,\,764}\end{array}\)                            \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{354}\\{\,\,\,63}\end{array}}\\\hline{\,\,\,\,417}\end{array}\)

\(\begin{array}{*{20}{c}}{b)\,\,}\\{}\\{}\end{array}\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{569}\\{426}\end{array}}\\\hline{\,\,\,\,143}\end{array}\)                     \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{753}\\{236}\end{array}}\\\hline{\,\,\,517}\end{array}\)                             \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{880}\\{\,\,54}\end{array}}\\\hline{\,\,\,826}\end{array}\)

43634 + 354 = 43988

Đáp số : 43988

vậy 43634 + 354 = 43988

ủng hộ tớ nha

43634+354=43988 nha

723

723

x + 45 = 54

x        = 54  -  45

x        = 9

  x - 45  = 54 

 x          = 54 + 45

x           = 99  

\(x+45=54\)

\(x=54-45\)

\(x=9\)

Vậy \(x=9\)

\(x-45=54\)

\(x=54+45\)

\(x=99\)

vậy \(x=99\)

\(k\) Mình nha mình nhanh nhất

~Chúc bạn học giỏi~

\(454+226-354-126+100\)

\(=(454-354)+(226-126)+100\)

\(=100+100+100=300\)

454+226-354-126+100

=(454+126)+(226-126)-354

=580+100-354

=680-354

=326

x+54=96

=>x=96-54

x=42

x=42

x=54-23

x=31

x = 54 - 23

x =31