90-76+23

=(90-76)+23

=14+23

=37

k nhe

90 - 76 + 23

= 14 + 23

= 37

x-23=76

x=76+23

x=99

x-23=76

x=76+23

x=99

10800

108* 23 + 108*76 + 108 = 108 (23+76+1) = 108* 100 = 10800

\(=976 . \left(76+23+1\right)\)
\(=976 . 100\)
\(=97600\)

976 \(\times\) 76 + 23 \(\times\) 976 + 976

= 976 \(\times\) ( 76 + 23 + 1 )

= 976 \(\times\) 100

= 97 600 

876*96+23*876+76*876

= 876+{96+23+76}

= 876*195

= 170820

\(23+87-26+12+76-56=116\)

Trả lời :

23 + 87 - 26 +12 + 76 - 56 = 116

Học tốt!

a)  - 2 3 .125.32. ( − 76 ) > 0 12.74 . - 3 4 . ( − 395 ) < 0 ⇒ ( − 2 ) 3 .125.32. ( − 76 ) > 12.74. ( − 3 ) 4 . ( − 395 )

b)  ( − 1 ) . ( − 2 ) . ( − 3 ) ... ( − 20 ) > 0 ( − 3 ) . ( − 4 ) . ( − 5 ) ... ( − 23 ) < 0 ⇒ ( − 1 ) . ( − 2 ) . ( − 3 ) ... ( − 20 ) > ( − 3 ) . ( − 4 ) . ( − 5 ) ... ( − 23 )

x + 23 = 76

x         = 76 - 23

x         = 53

Nhớ tk cho mình nha!

x = 76 - 23

x = 53

Mình nhanh nhất ^^ Tích mình với!