Determine the number

Determine the number x that

$x+8$

is

${\displaystyle \frac{7}{5}}$

from one half from

$7x-1$

.

Correct result:

x =  2.23

Solution:

$$\begin{gathered} x+8={\displaystyle \frac{7}{5}}\cdot {\displaystyle \frac{1}{2}}\cdot (7x-1) \\ x=2.23 \end{gathered}$$

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