Equations and Inequalities

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.

Tags

CCSS.6.EE.A.2C

Front

What is a variable in mathematics?

Back

A variable is a symbol, often represented by letters like x or y, that stands for an unknown value in an equation or expression.

Tags

CCSS.6.EE.A.2B

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.

Tags

CCSS.6.EE.B.7

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.

Tags

CCSS.8.EE.C.7B

Front

What is an inequality?

Back

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

Tags

CCSS.6.EE.B.8

Front

What is the solution to the equation x + 8 = 17?

Back

x = 9

Tags

CCSS.6.EE.B.7

Front

How do you solve the equation x + 32.6 = 46?

Back

Subtract 32.6 from both sides to get x = 13.4.

Tags

CCSS.6.EE.B.7

Front

What operation do you perform to solve x - 62 = 123?

Back

Add 62 to both sides to isolate x.

Tags

CCSS.6.EE.B.7

Front

What is the formula for distance traveled by sound?

Back

The distance d that sound travels is given by d = 0.2t, where t is time in seconds.

Tags

CCSS.HSF-LE.A.1B

Front

If sound travels for 20 seconds, how far does it go?

Back

d = 0.2 * 20 = 4 miles.

Tags

CCSS.HSF-LE.A.1B