(100 +ᠧ)⼀(160 +ᠧ)≈0.618怎么算

2025-06-28 03:49:29
推荐回答(1个)
回答1:

(100+X)/(160+X)=0.618
100+X=0.618*(160+X)
100+X=98.88+0.618*X
100-98.88=0.618X-X
1.12=-0.382X
X=-2.932