Solving Basic 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

What is the solution of a - 5 = 9?

Back

14

Front

Which equation has x = 5 as the solution?

Back

2x = 10

Front

Solve: -10x = 90

Back

x = -9

Front

Solve: -3w = 30

Back

w = -10

Front

What is the value of r in the equation 7r = 56?

Back

r = 8

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 x + 15 = 10?

Back

Subtract 15 from both sides of the equation.

Front

What does it mean if an equation has no solution?

Back

It means that there is no value for the variable that can make the equation true.