Modeling Equations

Front

What is a coefficient in an equation?

Back

A coefficient is the number that is being multiplied by a variable in an equation.

Front

How do you express 'double a number is 20' using a variable x?

Back

The equation is 2x = 20.

Front

What equation represents 'the sum of x and six is eight'?

Back

The equation is x + 6 = 8.

Front

What does the equation 2C = 8 represent?

Back

It represents a situation where two times a variable C equals 8.

Front

If circles = 1 and triangles = t, what equation represents 'the total is 7'?

Back

The equation is t + 4 = 7.

Front

What is a variable in an equation?

Back

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

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators without an equality 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 the difference between an equation and an expression?

Back

An equation has an equality sign, while an expression does not.

Front

How do you represent 'the product of 3 and a number x'?

Back

The expression is 3x.