Solving total resistance in a series parallel combination circuit

How to solve total resistance in a series parallel combination circuit when all you have is resistance values to work with.

Southwestern Community College Mechatronics

[joepolidoro]

thanks for the quick lesson. my teacher has done an amazing job explaining everything shown here but seeing it set up in a slightly different way really helps solidify everything i learned so far. definitely going to recommend this video to a few classmates.

[HaydenRoberts]

If you only have two resistor values in parallel (as per this video), you can use: Rt = R1xR2 / (R1+R2). Either way works.