Question

1)3а + 7b – 12а – 21b+а 2) 3 + (4x –2) ,3)2 – (b + 9) + 13b 4) 4 (6а + 1)-17.сооос​

Answer 1

Ответ:

1. - 8a - 14b.

2. 1 + 4x.

3. -7 + 12b.

4. 24a - 13. Поставь сердечко!

Объяснение:

1. 3a + 7b -12a - 21b + a = - 8a - 14b.

2. 3 + (4x - 2) = 1 + 4x.

3. 2 - (b + 9) + 13b = 2 - b - 9 + 13b = - 7 + 12b.

4. 4(6a + 1) - 17 = 24a + 4 - 17 = 24a - 13.

Answer 2

Let's simplify the given expressions:

1. 3a + 7b – 12a – 21b + a Combine like terms: (3a - 12a + a) + (7b - 21b) (-8a) + (-14b) -8a - 14b

2. 3 + (4x – 2) Apply the distributive property: 3 + 4x - 2 Combine like terms: 4x + 1

3. 2 – (b + 9) + 13b Apply the distributive property and simplify: 2 - b - 9 + 13b Combine like terms: -b + 13b - 7 12b - 7

4. 4(6a + 1) - 17 Apply the distributive property: 24a + 4 - 17 Combine like terms: 24a - 13

So, the simplified expressions are:

1. -8a - 14b
2. 4x + 1
3. 12b - 7
4. 24a - 13