`@` `\text {Ans}`
`\downarrow`
`a)`
`x \div ( 8,4 + 16,6 ) = 1,8 \times 3`
`x \div 25 = 5,4`
`x = 5,4 \times 25`
`x = 135`
Vậy, `x = 135.`
`b)`
`x \div ( 91,5 - 83,6) = 45`
`x \div 7,9 = 45`
`x = 45 \times 7,9`
`x = 355,5`
Vậy, `x = 355,5`
`c)`
`x \div ( 34 - 24,7) = 207`
`x \div 9,3 = 207`
`x = 207 \times 9,3`
`x =1925,1`
Vậy, `x = 1925,1.`
Tìm x:
a) \(x:\left(8,4+16,6\right)=1,8\times3\)
\(x:\left(8,4+16,6\right)=5,4\)
\(x:25=5,4\)
\(x=5,4\times25\)
\(x=135\)
b) \(x:\left(91,5-83,6\right)=45\)
\(x:7,9=45\)
\(x=45\times7,9\)
\(x=355,5\)
c) \(x:\left(34-24,7\right)=207\)
\(x:9,3=107\)
\(x=107\times9,3\)
\(x=995,1\)
Sửa câu c:
c) \(x:\left(34-24,7\right)=207\)
\(x:9,3=207\)
\(x=207\times9,3\)
\(x=1925,1\)
Nãy mik nhìn nhầm.
