8th Grade Test

Front

What is the solution to the equation 144 = 12z?

Back

z = 12

Front

What does it mean if an equation has infinite solutions?

Back

It means that any value of the variable will satisfy the equation.

Front

What is the solution to the equation 5x + 4 = 5x + 4?

Back

Infinite solutions.

Front

What is the solution to the equation 9 - x = -x + 9?

Back

Infinite solutions.

Front

How do you solve the equation 3d + 2 = 20?

Back

Subtract 2 from both sides to get 3d = 18, then divide by 3 to find d = 6.

Front

What is a variable in an equation?

Back

A symbol used to represent an unknown value.

Front

What is the process of isolating a variable in an equation?

Back

It involves rearranging the equation to get the variable on one side and the constants on the other.

Front

What does it mean for two equations to be equivalent?

Back

They have the same solution set.

Front

What is the significance of the equal sign in an equation?

Back

It indicates that the expressions on both sides have the same value.

Front

What is a linear equation?

Back

An equation that forms a straight line when graphed, typically in the form y = mx + b.