30% a x加零点五x等于二点四.解方程.

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30%ax加零点五x等于二点四.解方程.30%ax加零点五x等于二点四.解方程.30%ax加零点五x等于二点四.解方程.30%ax+0.5x=2.43ax+5x=24(3a+5)x=24x=24/(3

30% a x加零点五x等于二点四.解方程.
30% a x加零点五x等于二点四.解方程.

30% a x加零点五x等于二点四.解方程.
30%ax + 0.5x =2.4
3ax +5x =24
(3a +5)x =24
x=24/(3a +5)