R君のお家に行きました。
連立方程式、加減法が、ひとりで解けました！
すごいR君！
計算どんどん得意になっています。
連立方程式
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連立方程式 家庭教師ガッツ //esoulc.com/wp-content/uploads/2020/03/gsc-logo.png
