7th Grade Unit 3 Review: Adding and Subtracting Rational Expressions

What topic does Chapter 6 focus on in Unit 3?

• Inequalities

• Graphs

• Equations

• Functions

Which mathematical operation is used to simplify the expression '6x + 12x'?

• Division

• Addition

• Subtraction

• Multiplication

Tags

CCSS.7.EE.A.1

What is the result of combining the like terms in the expression '6x + 12x'?

• 24x

• 12x

• 6x

• 18x

Tags

CCSS.7.EE.A.1

In the context of distributive property, what does a negative outside the parentheses affect the terms inside?

• It nullifies each term

• It multiplies them by -1

• It leaves them unchanged

• It adds one to each term

Tags

CCSS.6.EE.A.3

What is the simplified form of the expression 'negative 4 times 5x plus negative 4 times 3'?

• -15x - 12

• -25x - 12

• -20x - 12

• -20x - 15

Tags

CCSS.6.EE.A.3

How do you calculate the perimeter of a shape?

• Subtract all sides

• Add all sides

• Divide all sides

• Multiply all sides

Tags

CCSS.3.MD.D.8

What common factor is used to simplify the expression '14x + 21'?

• 11

• 5

• 7

• 3

Tags

CCSS.7.EE.A.1

What operation reverses multiplication by a fraction in equation solving?

• Addition

• Multiplication by the reciprocal

• Division

• Subtraction

Tags

CCSS.HSA.REI.A.1

What is the solution to the equation '6.5 - x = 2.9'?

• x = 4.1

• x = 9.4

• x = 3.9

• x = 3.6

Tags

CCSS.6.EE.B.7

What is the result of adding one-third to negative one-third?

• Negative two-thirds

• Two-thirds

• One

• Zero

Tags

CCSS.7.NS.A.1C