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写真の赤線のところの方程式の解き方教えてください!!一応単元は理科です。
160lg」×0.1 =xlg」XU.08
x= 200Lg.
に溶けている食塩の質量は,
20.8[g]
201g× 0.12%3D 20.8Lg」(80+ 120) [g]
×100=10.4[%]
xgとすると, x[g] = (x+300) [g]×0.25 x=100[g]
36.7[g]
=77.6[g]
50gで
100
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字が汚くて読めないかもです。🙇♀️