Solving One Variable Equations Practice

What is the solution to the equation 28 + 3r = 10r?

• r = 2

• r = 3

• r = 4

• r = 5

What does the equation V = LWH represent?

• The area of a rectangle

• The volume of a rectangular prism

• The perimeter of a rectangle

• The surface area of a cube

How do you isolate a variable in an equation?

• By adding the same number to both sides of the equation until the variable is alone on one side.

• By performing inverse operations on both sides of the equation until the variable is alone on one side.

• By multiplying both sides of the equation by the variable's coefficient.

• By dividing both sides of the equation by the variable's value.

What is a coefficient in an equation?

• A constant term that does not change in an equation.

• A numerical factor that multiplies a variable in an equation.

• A variable that represents an unknown value in an equation.

• An operation that combines two or more numbers.

What does it mean to solve an equation?

• Finding the value of the variable that makes the equation true.

• Choosing a random number to substitute for the variable.

• Ignoring the variable and simplifying the equation.

• Writing the equation in a different form.

What is a one-variable equation?

• An equation that contains only one variable, which can be solved to find its value.

• An equation that contains two or more variables.

• An equation that has no solution.

• An equation that is always true regardless of the variable.

What is a constant in an equation?

• A variable that can change value

• A fixed value that does not change, represented by a number in an equation.

• An equation that has no solution

• A term that represents a changing quantity

What is the solution to the equation 6 + 3(2a-4) = 24?

• a = 3

• a = 4

• a = 5

• a = 6

How do you solve for W in the equation V = LWH?

• W = V/(LH)

• W = V + LH

• W = V - LH

• W = V * LH

What does it mean if an equation has no solution?

• An equation has no solution if there is no value for the variable that makes the equation true.

• An equation has no solution if it can be simplified to a true statement.

• An equation has no solution if it has more than one variable.

• An equation has no solution if it is a quadratic equation.