Answer: To find the value of x in the equation 9x + 8.0 = 12.7, we need to isolate x by getting it on one side of the equation and all the other terms on the other side. We can start by subtracting 8.0 from both sides:
9x + 8.0 - 8.0 = 12.7 - 8.0
9x = 4.7
Now we can divide both sides by 9:
9x / 9 = 4.7 / 9
x = 0.52
So the value of x in the equation is 0.52.
Explanation: