One Step Add/Subtract Equations

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two expressions are equal, often using an equals sign (=).

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents an unknown number in an equation.

Front

What is the first step to solve the equation m + 5 = 13?

Back

Subtract 5 from both sides of the equation.

Front

If m + 5 = 13, what is the value of m?

Back

m = 8.

Front

What is the first step to solve the equation p - 12 = 25?

Back

Add 12 to both sides of the equation.

Front

If p - 12 = 25, what is the value of p?

Back

p = 27.

Front

How do you represent a word problem as an equation?

Back

Identify the unknown, assign a variable, and translate the words into a mathematical expression.

Front

If Jayla has x dollars and spends 120 dollars to have 45 dollars left, what equation can we write?

Back

x - 120 = 45.

Front

If x - 120 = 45, what is the value of x?

Back

x = 165.