One Step Equation (Review)

Match the following

• add, subtract, multiply, and divide

• Operation

• a letter or symbol used to represent an unknown

• Coefficient

• a number in front of a variable

• Variable

• two equivalent expressions

• Equation

• a number by itself

• Constant

What is the inverse operation of subtraction?

• Subtraction
• Multiplication
• Division
• Addition

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

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

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Which of the following is used to solve single step equations mathematically?

• substitution
• inverse operations
• frequency
• data analysis

When solving 234 + N =389, what operation would you use to find the answer

• multiplication
• addition
• subtraction
• division

How would you isolate the variable in the following equation?

n + 4 = 12

• Add 4 to both sides, the answer is 16

• Divide both sides by 4, the answer is 3

• Subtract 4 from both sides, the answer is 8

• Multiply both sides by 4, the answer is 48

How would you isolate the variable for the following equation:

x - 7 = 2

• Divide both sides by 7, the answer is 125

• Add 7 to both sides, the answer is 9

• Add 2 to both sides, the answer is 9

• Multiply both sides by 7, the answer is 14

How would you isolate the variable in the following equation?

7x = 42

• Multiply both sides by 7, the answer is 294

• Divide both sides by 7, the answer is 6

• Subtract 7 from both sides, the answer is 35

• Add 7 to both sides, the answer is 49

How would you isolate the variable for the following equation?

9n = 45

• Subtract 9 from both sides. The answer is

  36

• Divide both sides by 9, the answer is

  5

• Divide both sides by 45, the answer is 5

• Multiply both sides by 9, the answer is 5.