Equivalent Expressions

Front

What is an equivalent expression?

Back

An equivalent expression is an expression that has the same value as another expression for all values of the variable(s) involved.

Front

How do you represent the difference of a number and a constant?

Back

You can represent the difference of a number t and a constant 22 as t - 22.

Front

What does 'more than' indicate in an expression?

Back

'More than' indicates addition in an expression.

Front

How would you express '35 more than the product of x and 9'?

Back

It can be expressed as 9x + 35.

Front

What is the value of the expression 42 - x when x = 30?

Back

The value is 8.

Front

How do you solve the equation -100 + x = 40 for x?

Back

To solve for x, add 100 to both sides, resulting in x = 140.

Front

How do you express '12 more than 5 times a number y'?

Back

It can be expressed as 5y + 12.

Front

What is the first step in simplifying an expression?

Back

The first step is to combine like terms.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value.

Front

What does it mean to evaluate an expression?

Back

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