x=(y+z-h)/((y+h)/2)h=?谁能帮我算一下写出公式来

题目详情

x=(y+z-h)/((y+h)/2) h=?谁能帮我算一下写出公式来

▼优质解答

答案和解析

x=(y+z-h)/((y+h)/2)
x=(2y+2z-2h)/(y+h)
yx+hx=2y+2z-2h
yx+hx-2y-2z+2h=0
yx-2y-2z+h(x+2)=0
h(x+2)=2y+2z-yx
h=(2y+2z-yx)/(x+2)

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