Solving equations review

Front

What is an equation?

Back

An equation is a mathematical statement that shows the equality of two expressions, typically containing variables.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is a variable in mathematics?

Back

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

Front

What is the first step in solving the equation 5b + 7 + 6b = 40?

Back

Combine like terms: 5b + 6b = 11b, so the equation becomes 11b + 7 = 40.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, you perform operations to get the variable on one side of the equation and the constants on the other.

Front

What is the solution to the equation 2x - 8 + x = -20?

Back

x = -4.

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 solution to the equation -2g - 3 = 11?

Back

g = -7.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, allowing you to multiply a single term by two or more terms inside a parenthesis.

Front

What is the solution to the equation 5(a + 6) = -15?

Back

a = -9.