True Equations

The video tutorial 'True Equations' introduces the concept of equations as mathematical statements with equal signs, using examples like '3 plus 4 equals 7'. It explains solving word problems with equations, using variables to represent unknowns. The tutorial provides examples involving marbles, coins, and cookies, demonstrating how to isolate variables and check solutions. Viewers are encouraged to practice solving equations and verify their answers for accuracy.

What is a key feature of an equation?

• It always has an equal sign.

• It always has a minus sign.

• It always has a multiplication sign.

• It always has a plus sign.

In the marble problem, what does the variable 'm' represent?

• The number of marbles Maddy has.

• The number of marbles both Sarah and Maddy have.

• The number of marbles Sarah has.

• The total number of marbles.

How do you isolate a variable in an equation?

• Add the same number to both sides.

• Subtract the same number from both sides.

• Divide both sides by the same number.

• Multiply both sides by the same number.

In the coin problem, what does the variable 's' stand for?

• The number of coins both Ben and Sam have.

• The number of coins Ben has.

• The number of coins Sam has.

• The total number of coins.

What is the first step in solving the coin problem?

• Divide both sides by 15.

• Multiply both sides by 15.

• Subtract 15 from both sides.

• Add 15 to both sides.

In the cookie problem, what does the variable 'a' represent?

• The number of cookies Maria baked.

• The number of cookies Alexis baked.

• The total number of cookies.

• The number of cookies both Maria and Alexis baked.

What is the final step to verify the solution in the cookie problem?

• Add the numbers on both sides.

• Subtract the numbers on both sides.

• Multiply the numbers on both sides.

• Check if the original equation holds true with the found value.