Algebra 1 2020 Quiz #1

Simplify: 5z - 4z

• 1z

• 9z

• 20z

• 1

Simplify: 6x + 1 + 7x

• 13x - 1

• 14x

• 7x + 6x + 1

• 13x + 1

Simplify: 2r + 2 + 5r - 2 + r

• 8r

• 8r - 4

• 12r

• 7r + 4 + r

 $Simplify:\ -5\left(2x\ +3y\right)$ 

• -10x – 15y

• 10x + 15y

• -7x – 2y 

• -10x – 8y 

Simplify:

 $2x\ +\ 7\left(3x\ +\ 4\right)$  

• 2x + 21x + 28

• 23x + 4

• 23x + 28

• 51x

Solve for w.

 $\frac{w}{5\ }\ =\ 12$  

• 60

• 7

•  $\frac{12}{5}$  

• 17

What would be the first step in solving this equation.

 $3x\ -\ 12\ =\ -30$  

• Divide by 3 to both sides

• Add 30 to both sides

• Subtract 12 to both sides

• Add 12 to both sides      

Solve 3x + 7 =−8

• x = 5

• x = -5

• x = -12

• x = -18

Simplify and then solve for the variable.

 $4k\ +\ 2\ -8k\ =\ 38$  

• 9

• -9

• 10

• -10

The triangle shown has a perimeter of 20 feet. Solve for x. Hint: Setup the equation that represents this situation and solve for x.

• 10

• 5

• 20

• 2