Question

5/7х+2 2/7х-8,3=0,7

Answer 1

5/7х + 2 2/7х - 8,3 = 0,7

2 7/7х = 0,7 + 8,3

3х = 9

х = 9 : 3

х = 3

Answer 2

It seems like you've provided an equation involving fractions. However, there might be a slight formatting issue in your input. I'll do my best to understand what you meant:

If the equation you're referring to is:

$\frac{5}{7}x + 2 - \frac{2}{7}x - 8.3 = 0.7$

Then we can simplify it step by step:

1. Combine the terms involving $x$:

$\frac{5}{7}x - \frac{2}{7}x = \frac{5 - 2}{7}x = \frac{3}{7}x$

2. Combine the constants:

$2 - 8.3 = -6.3$

So, the equation becomes:

$\frac{3}{7}x - 6.3 = 0.7$

3. Add 6.3 to both sides of the equation:

$\frac{3}{7}x = 0.7 + 6.3 = 7$

4. Now, isolate $x$ by multiplying both sides by $\frac{7}{3}$ (the reciprocal of $\frac{3}{7}$):

$x = \frac{7 \cdot 7}{3} = \frac{49}{3}$

So, the solution for the equation is $x = \frac{49}{3}$, which is approximately $x \approx 16.33$.