Quiz Review - 2/8

Which expression is equivalent to 7a - 8 - 12a + 4

• -9a

• 31a

• -5a - 4

• 19a + 12

In the expression, 6x - 2y + 4. The constant is ____. The coefficients are ____.

• The constant is 6. The coefficients are -2 and 4.

• The constant is 6. The coefficients are 2 and 4.

• The constant is -2. The coefficients are 6 and 4.

• The constant is 4. The coefficients are -2 and 6.

Simplify: -2(3x - 4) + 6 - 2x

• -8x + 14

• 8x - 14

• 4x - 2

• -4x +2

-3(-3x -3)

• 6x + 6

• 9x + 9

• -9x - 6

• 9x +6

When you combine like terms, you put everything together. For example x + 3x + 4 = 8x

• true

• false

2x + 3 + 4y = 8 is an equation.

• true

• false

Like terms need to have all the same variables. For example: 5x & -3x are like terms, but 6xy is not because of the y

• true

• false

5xy-5x can not be simplified.

• true

• false

-6k + 7k=

• k
• -k
• 12k
• -12k

Tags

CCSS.7.EE.A.1

n -10 +9n -3=

• -3
• 9n-3
• n
• 10n -13

Tags

CCSS.7.EE.A.1