若a=b,则下列等式成立的有______(填序号)①a+2=b+2 ②3a=3b ③ac=bc ④ -(a/2)=-(b/2) ⑤a/c=b/c ⑥a²=b²(3a+2b)x²+ax+b=0是关于x的一元一次方程,且x有唯一解,求x的值。
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![若a=b,则下列等式成立的有______(填序号)①a+2=b+2 ②3a=3b ③ac=bc ④ -(a/2)=-(b/2) ⑤a/c=b/c ⑥a²=b²(3a+2b)x²+ax+b=0是关于x的一元一次方程,且x有唯一解,求x的值。](/uploads/image/z/5430561-33-1.jpg?t=%E8%8B%A5a%3Db%2C%E5%88%99%E4%B8%8B%E5%88%97%E7%AD%89%E5%BC%8F%E6%88%90%E7%AB%8B%E7%9A%84%E6%9C%89______%EF%BC%88%E5%A1%AB%E5%BA%8F%E5%8F%B7%EF%BC%89%E2%91%A0a%2B2%3Db%2B2+%E2%91%A13a%3D3b+%E2%91%A2ac%3Dbc+%E2%91%A3+-%28a%2F2%29%3D-%28b%2F2%29+%E2%91%A4a%2Fc%3Db%2Fc+%E2%91%A5a%26sup2%3B%3Db%26sup2%3B%EF%BC%883a%2B2b%29x%26sup2%3B%2Bax%2Bb%3D0%E6%98%AF%E5%85%B3%E4%BA%8Ex%E7%9A%84%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%EF%BC%8C%E4%B8%94x%E6%9C%89%E5%94%AF%E4%B8%80%E8%A7%A3%EF%BC%8C%E6%B1%82x%E7%9A%84%E5%80%BC%E3%80%82)
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