Simplifying Expression Review (3/10)

What is the variable? 8x + 15

• 8X

• x

• 15

• +

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

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

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

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

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Simplify the following expression:
-10x - 9x + 1

• -19x + 1
• -19x² + 1
• -10x - 8
• -19x - 1

Simplify: 7j + 3k + 10j - k

• 3j + 4k

• 17j + 2k

• 19jk

• Can't be simplified

-7 + 5x - 3x - 12x

• 10x - 7

• -10x - 7

• -10x + 7

• 10x + 7

Distribute

9(x - 5)

• 9x + -45

• 9x + 5

• 9x + 14

• 9x + 45

Simplify 5(2 - 7n)

• 52 - 7n

• 10 - 7n

• 10 + -35n

• 10 + 35n