Question

Bài 1:Tìm x

​X x 2 + X x 8 = 100

​6425 - x : 12 = 5396

​

Answer 1

a) \(x\times2+x\times8=100\)

\(x\times\left(2+8\right)=100\)

\(x\times10=100\)

\(x=100\div10\)

\(x=10\)

b) \(6425-x\div12=5396\)

\(x\div12=6425-5396\)

\(x\div12=1029\)

\(x=1029\times12\)

\(x=12348\)

Answer 2

bài này dễ mà !!!

Answer 3

\(2X+8X=100\)

\(X.\left(2+8\right)=10\)

\(X=100:10\)

\(X=10\)

\(6425-x:12=5396\)

\(x:12=1029\)

\(x=12348\)

Answer 4

\(x\times2+x\times8=100\) 

\(x\times\left(2+8\right)=100\)

\(x\times10=100\)

\(x=\frac{100}{10}=10\)

Answer 5

a, =Xx(2+8)=100

=Xx10=100

X=100:10

X=10

b,=x:12=1029

x=1029x12

x=12348

Answer 6

X x 2 + X x 8 = 100

X x ( 2 + 8 ) = 100

X x 10 = 100

X = 100 : 10

X = 10

b) 6425 - x : 12 = 5396

x : 12 = 6425 - 5396

x : 12 = 1029

x = 1029 x 12

x = 12348

Answer 7

khó thế mà vẫn làm được