解方程:5x=25×4-15x和7x-x+2×3=29.4和(28.8+5.5x+3.2)÷2=71
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解方程:5x=25×4-15x和7x-x+2×3=29.4和(28.8+5.5x+3.2)÷2=71
![解方程:5x=25×4-15x和7x-x+2×3=29.4和(28.8+5.5x+3.2)÷2=71](/uploads/image/z/4838057-17-7.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%3A5x%3D25%C3%974-15x%E5%92%8C7x-x%2B2%C3%973%3D29.4%E5%92%8C%2828.8%2B5.5x%2B3.2%29%C3%B72%3D71)
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解方程:5x=25×4-15x和7x-x+2×3=29.4和(28.8+5.5x+3.2)÷2=71
5x=25*4-15x 7x-x+2*3=29.4 (28.8+5.5x+3.2)/2=71 方程解
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