Algebra 1-Quiz#1

Simplify the expression.
-b + 2 + 9b

• 2 + 8b
• 2 - 8b
• -8b + 2
• -2 - 8b

Which one is the variable?
2d - 6

• 2d
• 2
• d
• 6

Which one is the coefficient?
10y + 4

• y
• 10
• 4
• 10 and 4

Which one is the variable?
7a + 9b

• 9
• a
• b
• a and b

Is 77.35 an integer?

• yes
• no
• I have no idea
• maybe

 $7x+8+9x-5$  

•  $16x+3$  

•  $19x+3$  

•  $18x-7$  

•  $9x-7$  

 $3\left(k-6\right)$  

•  $3k-18$  

•  $-36+18k$  

•  $-28+18k$  

•  $-k-1$  

What is another way to write:

2 - (- 2)

• 2 - 2

• 2 + 2

• 2 + -2

• 2 - +2

Evaluate:
 $3-\left(z+x\right)$  ; use x=2, z=-3

• 4

• 1

• 8

• -2

Simplify the expression.
2m - 8 - 2m - 1

• 0
• 9
• -9
• 4m - 9