7th Grade Math Review 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(s) of the variable(s) that make the equation true.

Front

What is the first step in solving the equation y + 6 = 20?

Back

Subtract 6 from both sides to isolate y.

Front

What is the solution to the equation y + 6 = 20?

Back

y = 14.

Front

How do you isolate a variable in an equation?

Back

You perform inverse operations to both sides of the equation.

Front

What is the solution to the equation x - 10 = 12?

Back

x = 22.

Front

What operation would you use to solve the equation 9x = 153?

Back

Divide both sides by 9.

Front

What is the solution to the equation 9x = 153?

Back

x = 17.

Front

What does the equation v + 4 = 10 represent?

Back

It represents a situation where Robyn had some video games and bought 4 more, totaling 10 games.

Front

How do you check if your solution to an equation is correct?

Back

Substitute the solution back into the original equation to see if both sides are equal.