Question

0,8-2/3 (x-4)=2 1/3 (0,4-1 3/13)

Answer 1

я хз правильно или нет....

Answer 2

It seems like you have provided an equation with some arithmetic operations involving fractions. Let's break it down step by step:

The given equation is:

0.8 - (2/3) * (x - 4) = 2 + (1/3) * (0.4 - 1 3/13)

First, let's simplify the right-hand side of the equation:

0.4 - 1 3/13 = 0.4 - (1 + 3/13) = 0.4 - 1 - 3/13 = -0.6 - 3/13 = -13/21 - 3/13 = (-13 * 13 - 3 * 21) / (13 * 21) = (-169 - 63) / 273 = -232 / 273

So, the equation becomes:

0.8 - (2/3) * (x - 4) = 2 + (1/3) * (-232/273)

Now let's simplify the right-hand side further:

(1/3) * (-232/273) = (-232/819)

The equation now becomes:

0.8 - (2/3) * (x - 4) = 2 - (232/819)

To eliminate fractions, let's find a common denominator for 3 and 819, which is 3 * 273 = 819:

(2/3) * (x - 4) = 2 * 819/819 - 232/819 (2/3) * (x - 4) = (1638 - 232) / 819 (2/3) * (x - 4) = 1406 / 819

Now, let's solve for x:

2/3 * (x - 4) = 1406 / 819

To isolate x, multiply both sides by (3/2):

x - 4 = (1406 / 819) * (3 / 2)

x - 4 = (1406 * 3) / (819 * 2)

x - 4 = 4218 / 1638

x = (4218 / 1638) + 4

x = (2343 / 1638)

Now, you can simplify the fraction and get the decimal value if needed.

Please double-check the calculations as manual calculations can have errors, and make sure to verify the result.