5a;3a;ax;8a;7b;13x;5m;3n
8+4x=0(√)
73-2x=5(√)
x+8=26(√)
(1)x+30=100
(2)4x+4=16
(1)x-3+5=65
(2)a+3=131
(3)4m=25.6
(1)a=1;b=5
(2)c和d的和为14
最新
2025-06-27
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