Math 7 Flashcard - 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 find the perimeter of a triangle with linear expressions?

Back

To find the perimeter, add the lengths of all three sides, which can be expressed as linear expressions.

Front

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

Back

7x + 28

Front

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

Back

-5x + 5

Front

What is the result of subtracting (4x + 8) - (6x - 9)?

Back

-2x + 17

Front

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

Back

-2a + 2

Front

What is the first step in adding linear expressions?

Back

Combine like terms by adding the coefficients of the same variable.

Front

What does it mean to combine like terms?

Back

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

Front

What is the coefficient in the expression 5x + 3?

Back

The coefficient is 5, which is the number multiplying the variable x.

Front

What is the constant term in the expression 5x + 3?

Back

The constant term is 3, which does not contain any variables.