Final answer:
An equation that can be used to find the value of x is 5x - 30 = 3x + 10. The value of x is 20.
Step-by-step explanation:
An equation that can be used to find the value of x is:
5x - 30 = 3x + 10
To solve for x, we can subtract 3x from both sides:
5x - 3x - 30 = 3x - 3x + 10
Combine like terms:
2x - 30 = 10
Then, we can add 30 to both sides:
2x - 30 + 30 = 10 + 30
Combine like terms:
2x = 40
Finally, we can divide both sides by 2 to solve for x:
x = 20