Grade 9Math

Solving One-Step Equations by Multiplying or Dividing

Analyze solving one-step equations by multiplying or dividing in Grade 9 math — New Concept To find the solution of an equation, isolate the variable by using inverse operations.

Key Concepts

New Concept To find the solution of an equation, isolate the variable by using inverse operations. You must use the same inverse operation on each side of the equation.

Multiplication Property of Equality If $a = b$, then $ac = bc$.

Division Property of Equality If $a = b$ and $c \neq 0$, then $\frac{a}{c} = \frac{b}{c}$. What’s next This is just the start. Soon, you'll walk through worked examples and apply this skill to solve a real world architecture problem.

Common Questions

What is 'Solving One-Step Equations by Multiplying or Dividing' in Grade 9 math?

New Concept To find the solution of an equation, isolate the variable by using inverse operations. You must use the same inverse operation on each side of the equation.

How do you solve problems involving 'Solving One-Step Equations by Multiplying or Dividing'?

You must use the same inverse operation on each side of the equation. Multiplication Property of Equality If $a = b$, then $ac = bc$.

Why is 'Solving One-Step Equations by Multiplying or Dividing' an important Grade 9 math skill?

For an equation like $\frac{y}{5} = 15$, a student might accidentally divide by 5 again.. Always remember to do the opposite of what you see to isolate the variable!.