Math Solving for Unknowns

What is the value of x?

• 90 degrees

• 45 degrees

• 30 degrees

Solve for x.

• x=21

• x=84

• x=28

3x + 5x = 24

Getting the variable alone on one side of the equation is called what?

• Isolating (the constant)

• Isolating (the variable)

• Additional property of equality

• Multiplication property of equality

What do you do first to solve? 3x + 5x = 24

• Divide

• Combine Like Terms

• Subtract

• Combine Constants

Which property states that if the same term is added to (or subtracted from) both sides of an equation, the two sides will remain equal?

• Isolating (the constant)

• Isolating (the variable)

• Additional property of equality

• Multiplication property of equality

Which property states that if each side of an equation is multiplied by (or divided by) the same number, the two sides will remain equal?

• Isolating (the constant)

• Isolating (the variable)

• Additional property of equality

• Multiplication property of equality

When both the addition and multiplication properties are needed to solve an equation, which should be used first?

• The reciprocal of the fraction

• The additional property

• Isolating (the constant)

• Isolating (the variable)

When solving a word problem with two unknowns, which unknown should be represented with a variable?

• The one that has less information given about it

• The one that has more information given about it

• Both that have information given

• None that have information given

What do you do first to solve? 5x = 24

• Divide to isolate

• Combine Like Terms

• Subtract to isolate

• Combine Constants