请教(50%-15%)×S×g-S×(1+g)×10%×(1-60%)=0具体计算过程

问题描述:

请教(50%-15%)×S×g-S×(1+g)×10%×(1-60%)=0具体计算过程

化简:50%=0.5 15%=0.15 故原式有(0.5-0.15)×S×g-S×(1+g)×0.1×(1-0.6)=0
整理有0.35×S×g-S×(1+g)×0.04=0
0.35×S×g-0.04S-S×g×0.04=0 移项 0.31×S×g=0.04×S
有g=7.75

(50%-15%)×S×g-S×(1+g)×10%×(1-60%)=0(50%-15%)×g-(1+g)×10%×(1-60%)=035%×g-(1+g)×10%×40%=00.35×g-(1+g)×0.1×0.4=00.35×g-(1+g)×0.04=035×g-(1+g)×4=035g-4-4g=031g=4g=4/31