\(a,\)\(y-\frac{6}{2}-\left(48-24\times\frac{2}{6}-3\right)=0\)

\(\Rightarrow y-3-\left(48-8-3\right)=0\)

\(\Rightarrow y-3-48+8+3=0\)

\(\Rightarrow y-40=0\)

\(\Rightarrow y=40\)

1 ) 

= (1 + 3+ 5+ .....+2003+2005) \(\times\)( 125 nhân 1001 NHÂN 127 - 127 nhân 1001 nhân 125 )

= (1 + 3+ 5+ .....+2003+2005) \(\times\)0

= 0

Chúc bạn học tốt

Trả lời:

Bài 1 

\(\left(1+3+5+...+2003+2005\right)\times\left(125125\times127-127127\times125\right)\)

\(=\left\{\left(2005+1\right)\times\left[\left(2005-1\right)\div2+1\right]\div2\right\}\times\left(125\times1001\times127-127\times1001\times125\right)\)

\(=\left(2006\times1003\div2\right)\times0\)

\(=10061009\times0\)

\(=0\)

Bài 2 

\(y-6\div2-\left(48-24\times2\div6-3\right)=0\)

\(y-3-\left(48-8-3\right)=0\)

\(y-3-37=0\)

\(y-40=0\)

\(y=40\)

Vậy \(y=40\)

2) 

y - 3 - ( 48 - 48 : 6 - 3 ) = 0

y - 3 - ( 48 - 8 - 3 ) = 0

y - 3 - 32 = 0

y - 3 = 0 + 32

y - 3 = 32

y = 32+3

y = 35

Chúc bạn học tốt nhoa ! ~

y - 6 : 2 - ( 48 - 48 : 6 - 3 ) = 0

y - 6 : 2 - ( 48 - 8 - 3 ) = 0

y - 6 : 2 - 37 = 0

y - 3 - 37 = 0

y = 37 + 3

y = 40

a: =>y=0,056:7=0,008

b: =>y=21/50:6=21/300=0,07

a, 0,008

b, 0,07