Algebra - Ch. 3: Formula, Inequalities, Absolute Value (1 of 38) Solving Formula for a Variable: 1

In this video I will list, explain, and show an example on solving linear equations:
1) move all terms with L to the left side. Move all other terms to the right side OR flip the equation around:
2) factor out an L (if more than on term contains the L);
3) divide both sides by the factor of L.
I will find L=? for P=2W+2L. This is the is the equation of the length of the perimeter equals 2 times the width plus 2 times the length.

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[fisherh]

The solution shown in the thumbnail is incorrect. It shows "+ W" instead of "- W". The solution in the video is correct of course.