Equations and Inequalities Review

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables and constants.

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.

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations.

Front

What does it mean to isolate a variable?

Back

Isolating a variable means to manipulate the equation so that the variable is alone on one side, making it easier to find its value.

Front

What is the solution to the equation 5 + 3 = 2 + t?

Back

The solution is t = 6.

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.

Front

What is the first step to solve the equation y + 141 = 219?

Back

Subtract 141 from both sides to isolate y.

Front

What does the equation 7 + b = 10 represent?

Back

It represents that when you add b to 7, the result is 10.

Front

If Johnny's total race time is 9.2 minutes and his friend ran for 4.8 minutes, how do you find Johnny's time?

Back

You can write the equation 4.8 + j = 9.2.

Front

What is the value of j in the equation 4.8 + j = 9.2?

Back

The value of j is 4.4 minutes.