Mathematics
Junior High

「80分のX=60分のX-5」

「180分のX-80=150分のX+100」
の2つの,方程式を解くとどうなるのですか?

Answers

240(x/80)=240(x-5/60)
3x=4x-20
3x-4x=-20
-x=-20
x=20

clover

ありがとうございます!!
(❁ᴗ͈ˬᴗ͈)ペコリ。:.゚ஐ⋆*

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