Math Problem Statement

r+4=9

Solution

To solve the equation r+4=9r + 4 = 9, follow these steps:

  1. Subtract 4 from both sides to isolate rr: r+44=94r + 4 - 4 = 9 - 4 r=5r = 5

So, the solution is r=5r = 5.

Would you like more details or have any questions?

Here are 5 related questions:

  1. What happens if we add a negative number to both sides?
  2. How would you solve r3=7r - 3 = 7?
  3. What if the equation was r+4=12r + 4 = 12?
  4. How would you solve a similar equation with fractions, like r+12=9r + \frac{1}{2} = 9?
  5. What are the steps to solve 2r+4=102r + 4 = 10?

Tip: Always perform the same operation on both sides of the equation to keep it balanced.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations

Formulas

Basic equation solving: r + b = c

Theorems

Addition Property of Equality

Suitable Grade Level

Grades 6-7