Understanding Two-Step Equations and Inequalities

What is the first step in solving a two-step equation?

• Substitute the solution back in

• Divide by the coefficient

• Add or subtract to eliminate the constant

• Multiply by the variable

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CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

How do you verify the solution of a two-step equation?

• By dividing by the coefficient

• By substituting the solution back into the original equation

• By adding the constant

• By multiplying the variable

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When solving inequalities, what must you do if you multiply or divide by a negative number?

• Flip the inequality sign

• Subtract a constant

• Add a constant

• Keep the inequality sign the same

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CCSS.HSA.REI.B.3

How is the graph of 'x > 3' represented?

• Closed circle on 3, shading to the right

• Closed circle on 3, shading to the left

• Open circle on 3, shading to the left

• Open circle on 3, shading to the right

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What does 'at least' indicate in an inequality?

• Greater than or equal to

• Greater than

• Less than or equal to

• Less than

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How do you represent a scenario where someone cannot spend more than a certain amount?

• Using a greater than sign

• Using a less than sign

• Using a less than or equal to sign

• Using an equal sign

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What is the sum of complementary angles?

• 360 degrees

• 45 degrees

• 180 degrees

• 90 degrees

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If angle A and angle B are supplementary and angle A is 60 degrees, what equation represents their relationship?

• 60 + B = 180

• A + B = 90

• A + B = 180

• 60 + B = 90

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CCSS.HSA.CED.A.1

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What is the value of x if angle C and angle D are complementary, and angle C is 10x + 5 degrees while angle D is 15 degrees?

• x = 12

• x = 7

• x = 5

• x = 10

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CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

In a triangle, if the angles are represented as 20x, 7x + 5, and 40 degrees, what is the value of x?

• x = 10

• x = 12

• x = 7

• x = 5

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CCSS.HSA.CED.A.1

CCSS.HSG.CO.C.10