so khac trong day so tren la102103

tai vi cac so con lai co bon chu so ma so102103 co 6 chu so 

duyet nha

cái gì vậy trời

Nhung cau nhu the nay ban nen tinh bang may tinh thi hon!

ấn linh tinh à ????????

3:

a: -5x-16=-46

=>-5x=-46+16=-30

=>5x=30

=>\(x=\dfrac{30}{5}=6\)

b: -80-(-16-x)=20

=>\(-x-16=-80-20=-100\)

=>x+16=100

=>x=100-16=84

2:

a: \(\left(45-3456\right)+3456\)

\(=45+3456-3456\)

=45

b: \(\left(77+22-75\right)-\left(-25-78-13\right)\)

\(=77+13+22+78-75+25\)

\(=90+100-50\)

=140

c: \(-25\cdot63-25\cdot37\)

\(=-25\left(63+37\right)\)

\(=-25\cdot100=-2500\)

1) 20,22 : 0,5 + 20,22 : 0,125

= 20,22 x 2 + 20,22 x 8

= 20,22 x (2 + 8)

= 20,22 x 10

= 202,2

2) 3456 x 37 + 3456 x 19 + 3456 x 45 - 3456

= 3456 x 37 + 3456 x 19 + 3456 x 45 - 3456 x 1

= 3456 x (37 + 19 + 45 - 1)

= 3456 x 100

= 345600

x:125=\(\frac{69}{115}\)

x=\(\frac{69}{115}\times125\)

x=75

mình ko biết làm

75nhe

\(x\times3456-x\times2556+x=27035\)
\(x\times\left(3456-2556+1\right)=27035\)
\(x\times901=27035\)
\(x=27035:901\)
\(x=\dfrac{27035}{901}\)
#AvoidMe

Tuyên bố : đề bài sai

\(x\times3456-x\times2556+x=27035\)

\(x\times\left(3456-2556+1\right)=27035\)

\(x\times901=27035\)

\(x=27035:901\)

\(x=\dfrac{27035}{901}\)

`x xx 95 + x + x : 0,25 = 7963`

`x xx (95 + 1 + 4) = 7963`

`x xx 100 = 7963`

`=> x = 79,63`.

\(x\times\left(95+1+4\right)=7963\)

\(100\times x=7963\)

\(x=79,63\)

\(=>x\left(95+1+4\right)=7963\)

\(x=\dfrac{7963}{95+1+4}=\dfrac{7963}{100}=79,63\)

`x xx95+x+x:0,25=102,34`

`x xx95+x+x xx4=102,34`

`x xx(95+1+4)=102,34`

`x xx100=102,34`

`x=102,34:100=1,0234`

`x xx 95 + x + x :0,25 = 102,34`

`x xx 95 + x + x xx 4 = 102,34`

`x xx ( 95+1+4)=102,34`

`x xx 100 = 102,34`

`x = 102,34 : 100`

`x = 1,0234`

`x xx95+x+x:0,25=102,34`

`x xx(95+1+4)=102,34`

`x xx100=102,34`

`x=102,34:100`

`x=1,0234`