Simplifying Algebraic Expressions

How many terms are in the expression below:
3x - 6 + 4b + 5 + 7 - 2x

• five
• eight
• six
• nine

Which one is the variable?
3w + 2w - (-7w)

• 3
• 2
• w
• 12

Which one is the coefficient?
6f² - 9

• 6
• f
• 2
• 9

Which one is the constant?
5g³ + 2

• 5
• g
• 3
• 2

Simplify:
5x - 6x - 8x + 7 

• -9x + 7
• -9x -  7
• 9x + 7 
• 9x - 7

Simplify:
-1x + y - z + 10z + 2x - 10y

• 1x - 9y + 9z
• 1x - 9z - 9y
• -1x - 9z - 9y
• -1x - 9 - 9y

Simplify the algebraic equation:

6n - 7n - 4 + n

• 4

• -4

• n + 4

• n - 4

Simplify the algebraic equation:

9y - 4 - 11y + 7

• 20y + 11

• -2y - 11

• -2y - 3

• -2y + 3

Simplify the algebraic equation:

3x + 2 - 10 - 3x

• 6x - 8

• -6x + 8

• -6x - 8

• -8

Simplify the expression by combining like terms.

8a+4b+2c-3b+a

• 9a+b+2c

• 10a+7b+c

• 13abc

• 18abc