Subtracting Expressions

Front

What is the result of subtracting two algebraic expressions?

Back

To subtract two algebraic expressions, combine like terms by subtracting the coefficients of the same variable.

Front

Simplify the expression: (-4a + 5b – 7) – (5a + 3b)

Back

-9a + 2b - 7

Front

What is the first step in subtracting expressions?

Back

Distribute the negative sign to each term in the second expression.

Front

Simplify the expression: (10x + 2) - (8x - 4)

Back

2x + 6

Front

What does it mean to combine like terms?

Back

Combining like terms means to add or subtract coefficients of terms that have the same variable.

Front

Simplify the expression: (5x + 3) - (2x - 5)

Back

3x + 8

Front

What is the formula for subtracting expressions?

Back

(a + b) - (c + d) = (a - c) + (b - d) where a, b, c, and d are like terms.

Front

Simplify the expression: (2x + 7) - 3(5x - 4)

Back

-13x + 19

Front

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

Back

-2a + 2

Front

What is a common mistake when subtracting expressions?

Back

Forgetting to distribute the negative sign to all terms in the second expression.