Question

686. 1) 2a - 8a + 3a; 2) 7a -13a -4a;3) 9b -5b -3b;4) 8b + 4b - 7b;5) 0,6c 6 + 0,5C,6) 2,9с + 3с - 10с.​

Answer 1

Пошаговое объяснение:

1. -3a

2. -10a

3. b

4. 5b

5. 7,1c

6. -4,1c

Answer 2

It looks like you have a series of algebraic expressions involving variables a and c. Let's simplify each expression:

1. 2a - 8a + 3a: Combine like terms: (2 - 8 + 3)a = -3a

2. 7a - 13a - 4a: Combine like terms: (7 - 13 - 4)a = -10a

3. 9b - 5b - 3b: Combine like terms: (9 - 5 - 3)b = 1b = b

4. 8b + 4b - 7b: Combine like terms: (8 + 4 - 7)b = 5b

5. 0.6c + 0.5c: Combine like terms: (0.6 + 0.5)c = 1.1c

6. 2.9c + 3c - 10c: Combine like terms: (2.9 + 3 - 10)c = -4.1c

So, the simplified expressions are:

1. -3a
2. -10a
3. b
4. 5b
5. 1.1c
6. -4.1c