Question

-12а-25b+18а+14b = b-(b+6)+(b-18) = -7(m-4)+5(m+2) = с развёрнутым ответом

Answer 1

Пошаговое объяснение:

-12а-25b+18а+14b = (18а-12а)+(14b-25b) = 6a+(-11b) = 6a-11b

b-(b+6)+(b-18) = b-b-6+b-18 =  b-24

-7(m-4)+5(m+2) = -7m+28+5m+10 = (28+10)+(5m-7m) = 38+(-2m) = 38 -2m

Answer 2

Let's simplify each of these expressions step by step:

1. -12a - 25b + 18a + 14b

Combine like terms:

-12a + 18a = 6a -25b + 14b = -11b

So, the expression simplifies to:

6a - 11b

2. b - (b + 6) + (b - 18)

First, simplify the expressions within the parentheses:

b - (b + 6) = b - b - 6 = -6 (b - 18) remains the same.

Now, simplify the expression further:

-6 + (b - 18)

Combine like terms:

-6 - 18 = -24

So, the expression simplifies to:

-24

3. -7(m - 4) + 5(m + 2)

Distribute the numbers outside the parentheses:

-7 * m + 7 * 4 + 5 * m + 5 * 2

Simplify each part:

-7m + 28 + 5m + 10

Combine like terms:

-7m + 5m = -2m 28 + 10 = 38

So, the expression simplifies to:

-2m + 38

To summarize:

1. -12a - 25b + 18a + 14b simplifies to 6a - 11b.
2. b - (b + 6) + (b - 18) simplifies to -24.
3. -7(m - 4) + 5(m + 2) simplifies to -2m + 38.