Equations Review

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is the solution to the equation n - (-2) = -14?

Back

n = -16.

Front

How do you express 'the product of 7 and a number' mathematically?

Back

It is expressed as 7n.

Front

What is the equation for 'twice a number decreased by 5 is twelve'?

Back

Front

How do you write 'three more than 6 times a number is 56' in equation form?

Back

Front

Back

x = 4.

Front

What is a variable in an equation?

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 7n = 42?

Back

Divide both sides by 7 to isolate n.

Front

What does it mean to isolate a variable?

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 opposite side.