3-3 Solving Equations by Using Multiplication and Division A

Front

What is the principle of solving equations using multiplication?

Back

To isolate the variable, you can multiply both sides of the equation by the same non-zero number.

Front

Back

m = -5

Front

What does it mean to divide both sides of an equation?

Back

Dividing both sides of an equation by the same non-zero number keeps the equation balanced.

Front

Back

a = \frac{5}{6}

Front

Translate and solve: One-fifth of a number equals 25.

Back

Front

What is the effect of multiplying both sides of an equation by a negative number?

Back

It reverses the inequality if the equation is an inequality, but does not change the equality.

Front

Back

Front

Back

Multiply both sides by 5 to isolate x.

Front

Back

x = 5

Front

What is the definition of a variable in an equation?

Back

A symbol (often a letter) that represents an unknown value.