Mister Exam

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(nx+2x)*22.4=3.136; nx*44+2x*36.5=5.86

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The solution

You have entered [src]
(n*x + 2*x)*112   392
--------------- = ---
       5          125
$$\frac{112 \left(n x + 2 x\right)}{5} = \frac{392}{125}$$
         2*x*73   293
n*x*44 + ------ = ---
           2       50
$$\frac{73 \cdot 2 x}{2} + 44 n x = \frac{293}{50}$$
73*(2*x)/2 + 44*(n*x) = 293/50
Rapid solution
$$n_{1} = 5$$
=
$$5$$
=
5

$$x_{1} = \frac{1}{50}$$
=
$$\frac{1}{50}$$
=
0.0200000000000000
Numerical answer [src]
n1 = 5.0
x1 = 0.02
n1 = 5.0
x1 = 0.02