Question

8+28b -10a - 35ab/4-5a, если b=2

Answer 1

Пошаговое объяснение:

8+28*2-10а-35*2*а/4-5а=64-10а-70а/4-10=54-10а-70а/4=54-27,5а=54=27.5а

а=2

Answer 2

To simplify the expression $8 + 28b - 10a - \frac{35ab}{4} - 5a$ when $b = 2$, we can substitute the value of $b$ into the expression and then perform the calculations step by step:

Given $b = 2$, substitute $b$ in the expression:

$8 + 28(2) - 10a - \frac{35a(2)}{4} - 5a$

Now simplify each term:

$8 + 56 - 10a - \frac{70a}{4} - 5a$

$64 - 10a - \frac{70a}{4} - 5a$

$64 - 10a - \frac{35a}{2} - 5a$

Now, find a common denominator for the fractions and combine like terms:

$64 - \frac{20a}{2} - \frac{35a}{2}$

$64 - \frac{55a}{2}$

So, the simplified expression when $b = 2$ is $64 - \frac{55a}{2}$.