Unit 8 Test Review Solving Linear Equations and Inequalities

Which operation will cancel out multiplication?

• A.  Addition
• B. Subtraction
• C. Multiplication
• D. Division

Tags

CCSS.7.NS.A.2

CCSS.7.NS.A.3

Solve:
7x - 3x - 8 = 24

• 8
• -8
• 3.2
• 4

Tags

CCSS.8.EE.C.7B

Solve:
3(x - 2) = 18

• 6.7
• 4
• 8
• -4

Tags

CCSS.7.EE.B.4A

Solve:
2(2x + 3) = -6(x + 9)

• 1.2
• 6
• -6
• 7.5

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

Tags

CCSS.HSA.REI.B.3

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step
• They should add 19 instead of subtracting 19
• I can not find an error
• Instead of adding 3k they should subtract 3k

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve:
-19 + 3x = 3( x - 5)

• No Solutions
• Infinite Solutions
• x = (-6)
• x = 8

Solve for x. 
2x + 1 = 3x + 1 - x

• x = 0
• x = 1
• No Solution
• Infinite Solutions

 Solve the equation for x.
-8x - 8 + 3x - 6 = -3x + 2

• x = -8
• x = 8
• x = 2
• x = -2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Which property of real numbers justifies the work shown from Step 1 to Step 2?

• Distributive Property
• Commutative Property
• Identity Property
• Associative Property

Tags

CCSS.7.NS.A.1D