Simplify the following expressions: 6k – 7 + 1 – 8k, 2k + 7 + 1 + 9k, 6b + 10b, -x – 3x, m – 9 – 4, 7a + 3a, 8m – m, -2x – 9 + 1 + 2x, p – 7 + 1 – 2p.

Sure! Let’s simplify each expression step by step.

1. 6k – 7 + 1 – 8k

Combine like terms:

( (6k – 8k) + (-7 + 1) = -2k – 6 )

2. 2k + 7 + 1 + 9k

Combine like terms:

( (2k + 9k) + (7 + 1) = 11k + 8 )

3. 6b + 10b

Combine like terms:

( 6b + 10b = 16b )

4. -x – 3x

Combine like terms:

( -x – 3x = -4x )

5. m – 9 – 4

Combine like terms:

( m – (9 + 4) = m – 13 )

6. 7a + 3a

Combine like terms:

( 7a + 3a = 10a )

7. 8m – m

Combine like terms:

( 8m – m = 7m )

8. -2x – 9 + 1 + 2x

Combine like terms:

( (-2x + 2x)