Fred's Equation Error Analysis

The video tutorial discusses Fred's error in solving an equation, where he incorrectly combined numbers. The instructor explains the mistake and demonstrates how to solve the equation correctly. The solution is verified by substituting the value back into the original equation, confirming its accuracy.

What was the main task Fred was trying to accomplish?

• Solve a quadratic equation

• Solve a linear equation

• Graph a function

• Factor a polynomial

Between which steps did Fred make an error?

• Steps 4 and 5

• Steps 1 and 2

• Steps 3 and 4

• Steps 2 and 3

What mistake did Fred make in his calculation?

• He combined a negative and a positive number incorrectly

• He forgot to carry over a digit

• He multiplied instead of adding

• He added two negative numbers incorrectly

What should the correct result of -42 + 4 be?

• 46

• -38

• -46

• 38

What is the correct form of the equation Fred should have used?

• 24X - 56 = -6X - 38

• 24X + 56 = -6X - 46

• 24X - 56 = -6X + 46

• 24X + 56 = -6X + 38

What is the first step in solving the corrected equation?

• Subtract 6X from both sides

• Add 6X to both sides

• Divide both sides by 2

• Multiply both sides by 2

After combining like terms, what equation do we get?

• 30X - 56 = -38

• 30X + 56 = 38

• 30X + 56 = -38

• 30X - 56 = 38

What is the next step after obtaining 30X - 56 = -38?

• Subtract 56 from both sides

• Add 56 to both sides

• Multiply both sides by 30

• Divide both sides by 30

What is the value of x after solving the equation?

• 0.5

• 0.8

• 0.6

• 0.7

How can the solution 18/30 be expressed?

• As a fraction 3/4

• As a fraction 2/3

• As a decimal 0.6

• As a decimal 0.5