7th Equations and inequalities review extra(STAAR)

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 an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or not equal to the other.

Front

What does it mean when an inequality is written as x ≥ 5?

Back

It means that x can be any number greater than or equal to 5.

Front

How do you isolate a variable in an equation?

Back

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

Front

Back

Add 11 to both sides to isolate the term with k.

Front

What is the slope-intercept form of a linear equation?

Back

Front

How do you represent a situation where you earn a base amount plus additional earnings per task?

Back

Front

Back

Front

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

Back

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