Question

3(у-2)+2(у+1)-8. при у=1/5​

Answer 1

Пошаговое объяснение:

$3y - 6 + 2y + 2 - 8 = 5y -1 2 = 5(0.2) - 12 = 1 - 12 = - 11$

Answer 2

To solve this expression, substitute $у$ with $1/5$ and perform the calculations:

$3\left(\frac{1}{5} - 2\right) + 2\left(\frac{1}{5} + 1\right) - 8$

Now, simplify each part of the expression:

$= 3\left(\frac{1}{5} - \frac{10}{5}\right) + 2\left(\frac{1}{5} + \frac{5}{5}\right) - 8$

$= 3\left(\frac{-9}{5}\right) + 2\left(\frac{6}{5}\right) - 8$

Now multiply the coefficients:

$= \frac{-27}{5} + \frac{12}{5} - 8$

Combine the terms:

$= \frac{-27 + 12 - 40}{5}$

$= \frac{-55}{5}$

Finally, simplify the fraction:

$= -11$

So, when $у = \frac{1}{5}$, the expression $3(у-2) + 2(у+1) - 8$ equals $-11$.