Homework Week 2 (Algebra 1)

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

-7(8x -5)

• -56x +35

• -56x -35

• 56x +35

• 56x -35

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

• 9x - 10

• 3x + 2

• 3x - 10

• 9x + 10

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

3x + 2(4x - 4) = 3

• 4
• 3
• 2
• 1

5(x - 3) + 2x = 27

• x = 3
• x = 42/15
• x = 30/7
• x = 6

 $r\ +\ 11\ +\ 8r\ =\ 29$  

•  $r\ =0$  

•  $r\ =\ 1$  

•  $r\ =\ 2$  

•  $r\ =\ 3$  

 $-5\left(4x\ -\ 2\right)\ =\ -2\left(3\ +6x\right)$  

•  $x\ =\ 2$  

•  $x\ =\ 8$  

•  $x\ =\ -2$  

•  $x\ =\ -8$  

 $5\left(2x\ +\ 6\right)\ =\ -4\left(-5\ -2x\right)+\ 3x$  

•  $x\ =-20$  

•  $x\ =\ 20$  

•  $x\ =-10$  

•  $x\ =\ 10$  

5 + 2(n + 1) = 2n

Bill says the first step is the add 5 + 2 to get

7(n + 1) = 2n

• Bill is correct

• Bill is wrong. He should have subtracted 5 to both sides first.

• Bill wrong. He should have distributed the 2 first.

• Bill is wrong. He should have divided 2 to both sides first.