Solve One-Step (+/-) Equations

Front

What is a one-step equation?

Back

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

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side by itself, making it easier to solve.

Front

What is the first step in solving the equation x + 7 = 12?

Back

Subtract 7 from both sides of the equation.

Front

Solve the equation: x - 4 = 9.

Back

x = 13.

Front

What is the solution to the equation: y + 10 = 25?

Back

y = 15.

Front

If 5 + z = 12, what is z?

Back

z = 7.

Front

What is the equation for the situation: 'A number (n) decreased by 3 equals 5'?

Back

n - 3 = 5.

Front

How do you check if your solution to an equation is correct?

Back

Substitute the solution back into the original equation to see if both sides are equal.

Front

What is the opposite operation of addition?

Back

Subtraction.

Front

What is the opposite operation of subtraction?

Back

Addition.