Equations

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two expressions are equal, often containing variables.

Front

What does the variable 'k' represent in the equation 9 + k = 18?

Back

The variable 'k' represents an unknown number that, when added to 9, equals 18.

Front

How do you solve the equation 9 + k = 18?

Back

To solve for k, subtract 9 from both sides: k = 18 - 9, so k = 9.

Front

What is the equation to find Janeen's age if her mother is 47 and she is 26 years older?

Back

The equation is j + 26 = 47.

Front

How do you solve the equation j + 26 = 47?

Back

To solve for j, subtract 26 from both sides: j = 47 - 26, so j = 21.

Front

What does the equation 6d = 24 represent?

Back

It represents that 6 times some number d equals 24.

Front

How do you solve the equation 6d = 24?

Back

To solve for d, divide both sides by 6: d = 24 / 6, so d = 4.

Front

If Quentin bought 6 tennis balls and has 18 now, how do you find how many he started with?

Back

Set up the equation: x + 6 = 18, where x is the number of tennis balls he started with.

Front

How do you solve the equation x + 6 = 18?

Back

To solve for x, subtract 6 from both sides: x = 18 - 6, so x = 12.

Front

What is the equation for y + 5 = 10?

Back

It shows that y plus 5 equals 10.