Writing and Solving Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents an unknown value in an equation or expression.

Front

Write an equation to represent the total number of snowflakes created if 37 were hung and 43 were left.

Back

x = 37 + 43

Front

If Marco had 26 cards and now has 132, write an equation to find how many cards he was given.

Back

26 + b = 132

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, you perform operations to both sides of the equation to get the variable alone on one side.

Front

What is the solution to the equation x ÷ 5.3 = 22?

Back

x = 116.6

Front

If Lauren spends $4.25 from $19, how much does she have left?

Back

m = 19 - 4.25 = 14.75

Front

Write an equation to find the cost per pound of apples if Steve bought 3 pounds for $2.55.

Back

3x = 2.55

Front

What is the first step in solving the equation 3x = 2.55?

Back

Divide both sides by 3 to isolate x.