Writing & Solving One Step Equations | Math Defined with Mrs. C |7.EE.B.4

What is the first step in translating the statement 'A number divided by -9 is -16' into an algebraic equation?

• Multiply both sides by -9

• Add 16 to both sides

• Subtract -9 from both sides

• Replace 'a number' with a variable

How do you solve the equation 15 * n = -75?

• Add 75 to both sides

• Multiply both sides by 15

• Subtract 15 from both sides

• Divide both sides by 15

In the equation 2/5 * n = 3/20, what is the reciprocal of 2/5?

• 20/3

• 3/20

• 5/2

• 2/5

What operation is used to solve the equation n / -1.5 = 21?

• Subtraction

• Addition

• Multiplication

• Division

What is the result of solving the equation n / -1.5 = 21?

• n = 31.5

• n = -31.5

• n = 21

• n = -21