7x+5.3=7.4
7x=7.4-5.3
7x=2.1
x=2.1÷7
x=0.3
LZ的方程很简单啊~
7x+5.3=7.4
4个回答
相关问题
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计算:3/5X4/7÷3/5X4/7
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x+5 6x+4>7 x/3=7 3x=5*6 a
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1.6x－0.7x=4.5 9（x-7.3）=5.4
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12-3(9-x)=5(x-4)-7(7-x)
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用线性代数解x1+3x2+5x3+7x4 =12,3x1+5x2+7x3+x4=0,5x1+7x2+x3+3x4=1,7
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(3.5x-7)\6=8-4x 48-(7.5-x)*4=9x