Equations

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

Solve for x: x - 12 = 13

Back

x = 25

Front

Solve for x: 7x = 84

Back

x = 12

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

Solve for c: c/9 = 8

Back

c = 72

Front

Solve for m: m - 14 = 32

Back

m = 46

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 the equal sign in an equation?

Back

The equal sign indicates that the expressions on both sides of it have the same value.

Front

What is a solution to an equation?

Back

A solution to an equation is a value that, when substituted for the variable, makes the equation true.