0.75x - 4 * 1.8 =0.3 求x是?求x

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0.75x - 4 * 1.8 =0.3 求x是?求x

0.75x - 4 * 1.8 =0.3 求x是?求x
0.75x - 4 * 1.8 =0.3 求x是?
求x

0.75x - 4 * 1.8 =0.3 求x是?求x
0.75x-7.2=0.3
0.75x=7.5
x=10

10