Simplify the following expressions by COMBINING LIKE TERMS

Simplify the expression by combining like terms: a + 9m - n + 4x

• a + 9m - n + 4x

• a + 9m + n + 4x

• a + 9m - n - 4x

• a - 9m - n + 4x

Simplify the expression by combining like terms: -4n + 3w - 7x

• -4n + 3w - 7x

• -4n - 7x + 3w

• 3w - 4n - 7x

• -7x + 3w - 4n

Simplify the expression by combining like terms: 2h + 8k + 10h + 9k

• 12h + 17k

• 12h + 8k

• 2h + 17k

• 10h + 9k

Simplify the expression by combining like terms: 4a + 8b + 9c + z

• 4a + 8b + 9c + z

• 4a + 8b + 9c

• 8b + 9c + z

• 4a + 9c + z

Simplify the expression by combining like terms: 3a + 9 + 11a - 2

• 14a + 7

• 14a + 11

• 14a - 7

• 14a - 11

Simplify the expression by combining like terms: c + 4n + 6n + 5c

• 6c + 10n

• 5c + 10n

• 6c + 4n

• c + 10n

Simplify the expression by combining like terms: 120 - 3c + 8 + 5c

• 128 + 2c

• 128 - 2c

• 112 + 2c

• 112 - 2c

Simplify the expression by combining like terms: 2x + 7w - 5w - 6z

• 2x + 2w - 6z

• 2x + 12w - 6z

• 2x + 2w + 6z

• 2x + 12w + 6z