Writing Equations

Front

What is an equation?

Back

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

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 value in an equation.

Front

What does the term 'modeling a situation' mean in mathematics?

Back

Modeling a situation means creating a mathematical equation or expression that represents a real-world scenario.

Front

How do you represent 'Ted bought a dolphin poster for $12 and now has $5' mathematically?

Back

m - 12 = 5, where m is the total amount Ted had before buying the poster.

Front

What equation represents 'After dropping 5ºF, the temperature was 37ºF'?

Back

d - 5 = 37, where d is the original temperature.

Front

How can you express 'Marcus needs to sell 25 tickets and has sold 9 tickets' in an equation?

Back

t + 9 = 25, where t is the number of tickets Marcus still needs to sell.

Front

What equation models 'There are 3 tennis balls in each can and the coach bought a total of 27 tennis balls'?

Back

3x = 27, where x is the number of cans.

Front

How do you express 'Robyn had some video games, then bought 4 more, and now has 10 games'?

Back

v + 4 = 10, where v is the number of video games Robyn originally had.

Front

What is the first step in solving the equation 3x = 27?

Back

Divide both sides by 3 to isolate x.