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(1)2x+8=20(2)2x+8(3)2x+8
国庆作业(一)一、用递等式计算。40.6-13.5÷339+130×0.7107-1.3×6+453.6×4-17.5÷536+2.5×5-1186.4÷12-6×0.748+6.3÷9×3425-90÷1.5×6(42.4-3.85)×1.2÷2.6(46+35)÷(17.1÷1.9)3000-274+36×1.8106-1.4×6+5.43.8×4-14.5÷ ...
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