Solving Equations

Write an algebraic expression to represent the verbal expression "the product of 12 and the sum of a number and negative 3".

• 
  

  $12\left(x\ +-3\right)$
  

• $12x\ -\ 3$

• $12-3x$

• $3x-12$

Name the property illustrated by the following:

 $\left(8x-3\right)+12=\left(8x-3\right)+12$  

• additive inverse

• transitive property

• reflexive property

• commutative property

name the property illustrated by the following:

 $If\ a=-3\ and\ -3\ =\ d,\ then\ a\ =\ d$  

• Additive inverse

• commutative

• reflexive

• transitive

What is the value of

 $\frac{q^2+rt}{qr-2t}$  if  $q=-4,\ r=3\ and\ t=8$  ?

•  $\frac{17}{6}$  

•  $\frac{-10}{7}$  

•  $-\frac{2}{7}$  

•  $-\frac{1}{6}$  

Tags

CCSS.6.EE.A.2C

 $If\ \frac{y}{5}+8\ =7$  what is the value of $\ \frac{y}{5}-2?$  

• -10

• -3

• 1

• 5

Tags

CCSS.7.EE.B.4A

 $Solve\ 6\left(n+5\right)\ =\ 12$  

• 1

• -3

• 7

• -7

Tags

CCSS.7.EE.B.4A

 $Solve\ \frac{2}{3}\left(x+9\right)=14$  

• 8

• -3

• 12

• 9

Tags

CCSS.7.EE.B.4A

 $Solve\ 3y\ +\ 4\ =\ 19$  

• 15

• 7

• 19

• 5

Simplify the expression  $6^3\div\left[\left(17-8^2\right)+11\right]+17$  

• 11

• 0

• -6

• 23

Tags

CCSS.7.NS.A.3