Subtracting Expressions

Front

What is the process of subtracting algebraic expressions?

Back

To subtract algebraic expressions, distribute any negative signs, combine like terms, and simplify the expression.

Front

How do you simplify the expression (8 - u) - (5u + 1)?

Back

Distribute the negative sign: 8 - u - 5u - 1 = 7 - 6u.

Front

What is the result of subtracting (x - 3) from 2(0.5x - 2)?

Back

The result is 1 after simplifying the expression.

Front

What does it mean to combine like terms in algebra?

Back

Combining like terms means to add or subtract terms that have the same variable raised to the same power.

Front

What is the result of (7a + 4) - (9a + 2)?

Back

The result is -2a + 2 after simplifying the expression.

Front

How do you handle parentheses when subtracting expressions?

Back

Distribute the negative sign across the terms inside the parentheses before combining like terms.

Front

What is the simplified form of (5x - 6) - (x + 2)?

Back

The simplified form is 4x - 8.

Front

What is a common mistake when subtracting algebraic expressions?

Back

A common mistake is forgetting to distribute the negative sign when subtracting expressions.

Front

What is the importance of keeping track of signs when subtracting expressions?

Back

Keeping track of signs is crucial to ensure the accuracy of the final result.

Front

How do you check your work after subtracting algebraic expressions?

Back

You can check your work by substituting values for the variables and verifying that both sides of the equation are equal.