I'm currently working my way through electronics for dummies, where I am shown a simple voltage divider circuit comprising of a 6V battery and 2 resistors, R1 (220 ohm) and R2 (1000 ohm) in series.
To calculate the current, I will be using I = V (battery) / (R1 + R2)
As V1 can be calculated by the equation V1 = I x R1, by subbing this into the equation above, we get:
V1 = [ V(battery) / (R1 + R2) ] x R1
This is where I begin having problems, as the book then rearranges the equation by saying that I can rearrange the terms, without changing the equation to get:
V1 = [R1 / (R1 + R2)] x V(battery)
The problem I have is that I have no idea how the conversion from Equation 1 to Equation 2 takes place.
I have a poor background in mathematics so that accounts for my inability to decipher this seemingly simple conversion.
Could anyone help me out by listing the steps in order, for the conversion?
P.S I'm not sure if this should be under mathematics, but I placed it here since it concerns Ohm's law.