Algebra 1: Review Week 2

Evaluate: 6a + 4b - 6 when a = 1 and b = 3

• 16

• 12

• 10

• 20

Answer explanation

6(1) + 4(3) - 6

6 + 12 - 6

18 - 6

A = 12

Variables in math are _______, often letters, that represent different values in various situations.

• 18

• 11

• 12

• 15

• 7

• 2

• 10

• 5

Which expression is equivalent to

8(10 - 6q) + 3(-7q - 2)

• -69q + 74

• -69q + 78

• -55q + 74

• 69q + 74

Combine the like terms to create an equivalent expression:

4z - (-3z)

• -7z

• -3z

• 7z

• 9z

Answer explanation

4z - (-3z) = (4+3)z

A = 7z

Combine the like terms to create an equivalent expression:

-3n - 7 + (-6n) + 1

• -9n - 6

• • 6n - 8

• 9n - 8

• -6n - 6

Answer explanation

-3n - 7 + (-6n) + 1 =

-3n + (-6n) = -9n

-7 + 1 = -6

A = -9n -6

Simplify to create an equivalent expression:

-k - (-8k +7)

• 7k - 7

• -7k - 7

• 7k + 7

• -7k + 7

Answer explanation

• - k - 1 (-8k + 7) = -k + 8k -7

• -k + 8k = 7k

• A = 7k -7

Which expression is equivalent to:

2 (4f + 2g) ?

• 8f + 2g

• 8f + 4g

• 2f (4 + 2g)

• 4(2f + g)