Mathematics
Senior High
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この問題の3行目から5行目への等式変形のやり方を教えてください❗️❗️
⑳9 dQ-の0-のQE29QEの=9G-の
0-のd-29q-z9・0-の1-29-29
ニー (6+20+20+ (622T ez 20.2) みり
*介(2+g+29 (2.25+25.26二26.2) ーzz59
=ロー (2+22+るの+ (25+26+25) -1
*信-(@?+25+29 +(2+2f+29) -1
=(-g+@) (+の)
=ー(@-@) "=ー(77の=7
(答)
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