Mathematics
Senior High
Resolved
至急です😭数2の式と証明の問題です。分からないので教えて欲しいです💦
等式 (k+1)x + (k-4)y+2k+7=0が, kのどのような値に対しても成り立つよ
うに,x,yの値を定めよ。
kx+x+ky-4y+2y+7:0
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