Solving One-Step Algebra Addition Sentences

Solve the following equation
X + 8 = 15

• 23

• -7

• 7

• -23

Tags

7.11.B

Solve for x:

4x + 1 = 5

Write your answer as a whole number (Simplify)

Tags

7.11.B

3x + 2 = 44

x = _____

To undo an operation, you must do its opposite or inverse to both sides of the equation. Match each operation to its inverse.

• Division

• Division

• Subtraction

• Multiplication

• Addition

• Addition

• Multiplication

• Subtraction

The goal of solving a one, two, or multi-step equations is to:

• Find the constant

• Find the coefficient

• Find the value of the variable

• Guess and check

What is the next step to solve this equation?
3x - 5 = 7

• Add 5 to both sides of the equation

• Add 3x to both sides of the equation

• Subtract 5 from both sides of the equation

• Subtract 7 from both sides of the equation

What is the first step to solve this equation?
3n - 4 = -2 + 2n 

• Add 2n to both sides of the equation

• Add 3n to both sides of the equation

• Subtract 2n from both sides of the equation

• Subtract 4 from both sides of the equation

What is the next step to solve this equation?
n - 4 = -2

• Add 4 to both sides of the equation

• Add n to both sides of the equation

• Subtract n from both sides of the equation

• Subtract 4 from both sides of the equation

What is the first step to solve this equation?
k + 6 = -4k - 9 

• Add k to both sides of the equation

• Add 4k to both sides of the equation

• Subtract 9 from both sides of the equation

• Subtract 4k from both sides of the equation

What is the next step to solve this equation?
5k + 6 = -9

• Add 9 to both sides of the equation

• Add 6 to both sides of the equation

• Subtract 6 from both sides of the equation

• Subtract 5k from both sides of the equation