Understanding Subtraction of Linear Expressions

What is the difference in seconds between two races if one took 9 days, 11 hours, 46 minutes, and 48 seconds, and the other took 9 days, 5 hours, 8 minutes, and 41 seconds?

• 7 seconds

• 9 seconds

• 5 seconds

• 11 seconds

When subtracting linear expressions, what is the first step to simplify the expression 6x + 3 - 2x - 2?

• Add the coefficients of x

• Multiply the terms

• Subtract the constants

• Change subtraction to addition

In the expression 5x - 9 - (2x - 7), what is the result after changing subtraction to addition?

• 3x - 2

• 7x - 16

• 3x + 2

• 7x + 16

How do you handle negative terms when subtracting the expression -2x - 4 - 2x?

• Add the terms directly

• Use zero pairs

• Multiply by -1

• Ignore the negative sign

What is the result of subtracting 3x - 2 from 5x - 4?

• -2x - 2

• 2x - 2

• -2x + 2

• 2x + 2

In the expression 4x - 3 - (2x + 7), what is the simplified result?

• 2x - 10

• 6x + 4

• 2x + 10

• 6x - 4

What is the first step in solving 5x - 4 - (2x + 3) using the additive inverse?

• Add 2x and 3

• Subtract 2x and 3

• Change subtraction to addition

• Multiply by -1

How many more college hats were sold than professional hats if the expressions are 6m + 3 and 5m - 2?

• m - 3

• m + 3

• m - 5

• m + 5

If m equals 10, how many more college hats were sold than professional hats?

• 20

• 15

• 10

• 5

What is the expression for the difference in sales between college and professional hats?

• 5m + 3

• m - 5

• 5m - 3

• m + 5