add and subtract linear expressions

Front

What is a linear expression?

Back

A linear expression is an algebraic expression in which each term is either a constant or the product of a constant and a single variable raised to the first power.

Front

How do you add linear expressions?

Back

To add linear expressions, combine like terms by adding the coefficients of the same variable.

Front

How do you subtract linear expressions?

Back

To subtract linear expressions, distribute the negative sign and then combine like terms.

Front

What is a like term?

Back

Like terms are terms that have the same variable raised to the same power.

Front

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

Back

-2a + 2

Front

What is the result of (3x + 15) + (4x + 13)?

Back

7x + 28

Front

What is the result of (2x + 4) - (7x - 1)?

Back

-5x + 5

Front

What is the result of (-x + 12) - (-4x + 2)?

Back

3x + 10

Front

What is the result of (2x + 5) - (x + 4)?

Back

x + 1

Front

What does it mean to combine like terms?

Back

Combining like terms means to simplify an expression by adding or subtracting coefficients of the same variable.