Board Thread:General Discussion/@comment-25404524-20170219033821/@comment-25404524-20170224094132

Finding copper cost. If you did simultaneous equations, you'll understand this...


 * 1) S + M + H + A + G + P + C + D = 79
 * 2) S + M + H + A + G + P + D = 48

Substitute SMHAGP and D with actual data.


 * 1) S + M + H + A + G + P + (insert actual cost of SMHAGP) + C + D + 1 = 79
 * 2) S + M + H + A + G + P + (insert actual cost of SMHAGP) D + 1 = 48

Made a mistake with just substituting because in algebra, I missed out the most important fact about making equal changes on both sides.