Pre-Algebra, Chapter 2 REVIEW

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

Tags

CCSS.6.EE.B.7

Solve the equation:
x - 4 = -3

• x = -7
• x = 1
• x = 12
• x = -12

Tags

CCSS.6.EE.B.7

Solve the equation:
 $\frac{x}{-2}=-4$  

• 22

• 9

• 8

• 6

Tags

CCSS.6.EE.B.7

Solve each equation:
 $-4+r=10$  

• r = 14

• r = 6

• r = -6

• r = 40

Tags

CCSS.6.EE.B.7

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

Inverse

• a mathematical statement that does not have an equal sign

• to separate numbers and variables; get the variable alone

• a letter that represents an unknown number

• the opposite

Tags

CCSS.7.NS.A.1B

Constant

• the term that is a plain number (without the variable)

• the opposite

• a mathematical statement that does not have an equal sign

• the number attached to the variable (the number being multiplied/divided)

Coefficient

• to separate numbers and variables; get the variable alone

• a letter that represents an unknown number

• a mathematical statement contains an equal sign

• the number attached to the variable (the number being multiplied/divided)

Simplify   2(3x + 5)

• 6x + 10
• 23x + 5
• 6x + 5
• 11x

Tags

CCSS.7.NS.A.1D

Simplify    5(2 - 7n)

• 52 - 7n
• 10 - 7n
• 10 - 35n
• 10 + 35n

Tags

CCSS.7.NS.A.1D