Adding & Subtracting Linear Expressions

Front

What is a linear expression?

Back

A linear expression is an algebraic expression in which the highest power of the variable is one. For example, 2x + 3 is a linear expression.

Front

What does it mean to combine like terms?

Back

Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.

Front

What is the variable in the expression 5y + 7?

Back

The variable is 'y'.

Front

What is the result of (-4x + 3) + (-2x + 8)?

Back

The result is -6x + 11.

Front

How many terms are in the expression 2y + x + 4?

Back

There are 3 terms.

Front

What is the result of (2x - 6) + (4x - 4)?

Back

The result is 6x - 10.

Front

What is the coefficient in the expression 5y + 7?

Back

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

Front

What is the result of (2x + 3) + (x + 4)?

Back

The result is 3x + 7.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 3x + 2 is an algebraic expression.

Front

What does it mean to evaluate an expression?

Back

Evaluating an expression means to calculate its value by substituting the variables with specific numbers.