Solve One Step Addition Equations

What is a one step addition equation

An equation where the variable is being added to a number

What operation do we use to solve a one step addition equation

Subtraction the inverse of addition

What does inverse mean

The opposite operation

What is the inverse of addition

Subtraction

What rule keeps equations balanced

Whatever you do to one side you do to the other side

Step 1 to solve one step addition equations

Copy the equation

Step 2 to solve one step addition equations

Look at what is being added to the variable

Step 3 to solve one step addition equations

Use subtraction to cancel it out on both sides

Step 4 to solve one step addition equations

Simplify to find the variable

Step 5 to solve one step addition equations

Check your answer by substitution

Example solve 15 + x = 25

x = 10

How to check the solution for 15 + x = 25

Substitute x = 10 and see that 15 + 10 = 25