One-Step Equations - Adding and Subtracting

Front

What is a one-step equation?

Back

A one-step equation is an algebraic equation that can be solved in a single step, typically involving addition or subtraction to isolate the variable.

Front

How do you solve the equation x + 3 = 17?

Back

To solve x + 3 = 17, subtract 3 from both sides to isolate x: x = 17 - 3, so x = 14.

Front

What is the first step to solve the equation 9 + x = 21?

Back

The first step is to subtract 9 from both sides of the equation to isolate x: x = 21 - 9, so x = 12.

Front

How do you isolate the variable in the equation x + 12 = 20?

Back

Subtract 12 from both sides: x = 20 - 12, so x = 8.

Front

What is the solution to the equation y + 51 = 99?

Back

To solve for y, subtract 51 from both sides: y = 99 - 51, so y = 48.

Front

How do you solve the equation x + 40 = 56?

Back

Subtract 40 from both sides to isolate x: x = 56 - 40, so x = 16.

Front

What is the principle of balancing equations?

Back

The principle of balancing equations states that whatever you do to one side of the equation, you must do to the other side to maintain equality.

Front

What does it mean to isolate a variable?

Back

Isolating a variable means to manipulate the equation so that the variable is on one side by itself, allowing you to find its value.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.