Simplifying Expressions

Simplify the expression: 3x + 2x

• 5x
• x
• 6x
• 5

• 13x + 5

• -5 - 13x

• 7x -5

• 13x + 3

Answer explanation

Combining 3x and 10x gives us 13x.

Combining 4 and -1 gives us 3.

Answer explanation

Distribute 5 to 10 = 50

Distribute 5 to 9x = 45x

• a

• b

• c

Answer explanation

The coefficient of the parenthesis gets distrubuted to each term within the parenthesis!

Answer explanation

Make sure you distribute the 3 first! Then combine your like terms.

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

2xy can be combined with 3xy²

• True

• False

Simplify the following expression:
-8 (5b + 2) -7 (b - 5)

• -33b + 19
• -47b² +  21
• 33b - 19
• -47b -19

Simplify the following expression:
-6x + 4(-x - 3)

• -2x - 12
• 10x + 12
• -10x - 12
• -2x + 12

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y
• 3x, 9x
• 3x, -9x
• 3x, -9x, 2x²