1 第3课时第1题答案
3y;26m;5b;10a;5.5x;14.6a;2.5y;2y
2 第3课时第2题答案
(1)36-x+5
(2)vt;18÷v
(3)260a
(4)1
(5)10
(6)相同的数
3 第3课时第3题答案
x=1;x=9;y=14;y=196
4 第3课时第4题答案
79台
5 第3课时第5题答案
7.5;4;12.5;25
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