Mathematics
Senior High
Solved
青丸の問題の青線の下がなぜそうなるかわかりません!
ーー ハス/ 上27- 1)
(
2 み
ほ) え 十3*y十2y ー人ター3y+1=ッ(3)のzキ(2アデー37キ1
=タダ+(37-2)ァ(ター1(2ター1)
=タ+(ッー1)z二(2ァー
=テ(*+キター1)(z寺27一1)
3z?一5gz十2g?ー3*二gー6=3z?+(-5g一3)x(2g2二g
ー3x?上(一5g一3)*二(g 0yこ
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