C6 Topic 4: One-Step Equations- Add and Subtract

Front

What is a one-step equation?

Back

A one-step equation is an equation that can be solved in one operation, such as addition or subtraction, to find the value of the variable.

Front

Solve for x: x + 12 = 20

Back

x = 8

Front

What is the inverse operation of addition?

Back

Subtraction

Front

What is the correct step to solve for the variable in the equation 15 = m - 5?

Back

Add 5 to both sides.

Front

Solve for b: 4 + b = 30

Back

b = 26

Front

How do you isolate the variable in the equation x + 7 = 12?

Back

Subtract 7 from both sides. The solution is x = 5.

Front

What does it mean to isolate a variable?

Back

To isolate a variable means to get the variable alone on one side of the equation.

Front

If x - 3 = 10, what is x?

Back

x = 13

Front

What is the first step to solve the equation x + 9 = 15?

Back

Subtract 9 from both sides.

Front

Solve for y: y - 4 = 10

Back

y = 14