Mathematics
Junior High
Resolved

これの解き方を教えて欲しいです。
ちなみに答えはa=7.b=-1です

(4 ¥5)下の連立方程式の解が(x,y)= (-3,4)のとき、 a,bの 値を求めなさい。 ax + 5y = -1 -2x + by = 2

Answers

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