Question

Раскройте скобки и приведите подобные слагаемые 4(2,5b-3)-(5b+8)

Answer 1

4(2,5б-3)-(5б+8)= 10б-12-5б-8=5б-20
Ответ: 5б-20

Answer 2

Solving the Expression 4(2.5b - 3) - (5b + 8)

To solve the given expression, we'll first distribute the 4 to the terms inside the parentheses and then combine like terms.

Step 1: Distribute 4 to the terms inside the parentheses

The expression 4(2.5b - 3) can be expanded as follows: 4 * 2.5b - 4 * 3

Expanding the expression gives us: 10b - 12

Step 2: Combine like terms

Now, we'll subtract the expression (5b + 8) from the result of the previous step: 10b - 12 - (5b + 8)

Combining like terms gives us: 10b - 12 - 5b - 8

Simplifying further: (10b - 5b) + (-12 - 8) 5b - 20

So, the simplified form of the given expression is 5b - 20.

Final Answer:

The simplified form of the expression 4(2.5b - 3) - (5b + 8) is 5b - 20.