Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts 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(s) of the variable(s) that make the equation true.

Front

What is the solution to the equation p/5 = 7?

Back

p = 35

Front

If Melanie and Julian have 50 dinosaurs in total and Julian has 21, how many does Melanie have?

Back

Melanie has 29 dinosaurs.

Front

What is the solution to the equation 1.2x = 9.6?

Back

x = 8

Front

What is the solution to the equation 7x = 84?

Back

x = 12.

Front

What is the solution to the equation 23 = x + 7?

Back

x = 16.

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 purpose of isolating the variable in an equation?

Back

Isolating the variable helps to find its value by getting it alone on one side of the equation.

Front

What does it mean if an equation has no solution?

Back

An equation has no solution if there are no values for the variable that can make the equation true.