Equations Review

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 the variable 'w' represent in the equation 25w = 600?

Back

In this equation, 'w' represents the number of weeks Mary has been saving.

Front

How do you solve for 's' in the equation s + 49.95 = 79.16?

Back

To solve for 's', subtract 49.95 from both sides: s = 79.16 - 49.95 = 29.21.

Front

What is the solution to the equation 8x = 2?

Back

To solve for 'x', divide both sides by 8: x = 2/8 = 1/4.

Front

Which of the following is NOT an equation: 8x, 8x = 2, 8x - 5, or 8 divided by x?

Back

8 divided by x is NOT an equation because it does not contain an equality sign.

Front

What is the cost of the shirt if Jeremy spent a total of $79.16 on a shirt and jeans costing $49.95?

Back

The cost of the shirt is $29.21.

Front

What is the first step to solve the equation -8y = -32?

Back

The first step is to divide both sides by -8 to isolate 'y': y = -32 / -8 = 4.

Front

What does it mean for an equation to be true when y = 4?

Back

It means that when you substitute 4 for 'y' in the equation, both sides of the equation will be equal.

Front

What is the equation that represents Mary saving $25 per week for a total of $600?

Back

The equation is 25w = 600.

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value but does not include an equality sign.