Equations Review

Front

What is the product of 5 and 7?

Back

5 x 7 = 35

Front

How do you solve the equation r - 11 = 5?

Back

Add 11 to both sides: r = 5 + 11, so r = 16.

Front

What is the inverse operation of addition?

Back

Subtraction.

Front

What is an expression in algebra?

Back

An expression is a combination of numbers, variables, and operators (e.g., 2x + 6x - 10).

Front

How do you solve the equation 3x = 6 for x?

Back

Divide both sides by 3: x = 6 / 3, so x = 2.

Front

What is the definition of an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What is the solution to the equation x + 4 = 10?

Back

Subtract 4 from both sides: x = 10 - 4, so x = 6.

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side and all other terms are on the other side.

Front

What is the formula for the distributive property?

Back

a(b + c) = ab + ac.

Front

How do you combine like terms in an expression?

Back

Add or subtract the coefficients of the terms that have the same variable.