Let's solve the equation given:
- 5(3 - x) + 4 = 5x - 11
-15 + 5x + 4 = 5x - 11
5x - 11 = 5x - 11
Adding 11 to both sides of the equation:
5x - 11 + 11 = 5x - 11 + 11
5x = 5x
This equation has infinite solutions
Interpretation:
If we replace x by any number the equality will remain, no matter what number x will take. That's why this equation wil have infinite number of solutions.
Example: x = 5
5 * 7 = 5 * 7
35 = 35
Example 2: x = √2
5 * √2 = 5 * √2
5 √2 = 5 √2