Question

1.     Tìm x:

a) x × 1,23 + x × 5,27 = 227,5

b) 36,8 : x − 14,2 : x = 14,125

 

 

Answer 1

\(a,x.1,23+x.5,27=227,5\\ \Rightarrow x.\left(1,23+5,27\right)x=227,5\\ \Rightarrow6,5x=227,5\\ \Rightarrow x=227,5:6,5=35\)

\(b,36,8:x-14,2:x=14,125\\ \Rightarrow\left(36,8-14,2\right):x=14,125\\ \Rightarrow22,6:x=14,125\\ \Rightarrow x=22,6:14,125=1,6\)

Answer 2

`a, x xx 6,5 = 227,5`

`x= 35`

`b, 22,6 : x = 14,125`

`x = 1,6`