(x-20)÷+(x+14-20)=72%
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(x-20)÷(x+14-20)=72%x-20=0.72(x-6)
咨询记录 · 回答于2023-06-05
(x-20)÷+(x+14-20)=72%
(x-20)÷(x+14-20)=72%?我正在为您解答:
您好!根据目前的题目信息来看,(x-20)÷(x+14-20)=72%?这是一个简单的计算题
(x-20)÷(x+14-20)=72%x-20=0.72(x-6)
(x-20)÷(x+14-20)=72%x-20=0.72(x-6)x-20=0.72x-0.72×6x-0.72x=20-0.72×6
(x-20)÷(x+14-20)=72%x-20=0.72(x-6)x-20=0.72x-0.72×6x-0.72x=20-0.72×60.28x=15.68x=15.68÷0.28x=56
答案:56(x-20)÷(x+14-20)=72%x-20=0.72(x-6)x-20=0.72x-0.72×6x-0.72x=20-0.72×60.28x=15.68x=15.68÷0.28x=56
1/3 X+1/4 X(2000-X)=2000-1400
1/3 X+1/4 X(2000-X)=2000-1400
1/3 X+1/4 X(2000-X)=2000-1400
好的
1/3 X+1/4 X(2000-X)=2000-14001/3x+500-1/4x=6004/12x-3/12x=600-5001/12x=100x=100×12x=1200
答案:12001/3 X+1/4 X(2000-X)=2000-14001/3x+500-1/4x=6004/12x-3/12x=600-5001/12x=100x=100×12x=1200