数学
解方程:300x+150(50-x)+200(42-x)+150(x-2)=1600

2019-05-28

解方程:300x+150(50-x)+200(42-x)+150(x-2)=1600
优质解答
300x+7500-150x+8400-200x+150x-300=1600
100x+15600=1600
100x=-14000
x=-140
300x+7500-150x+8400-200x+150x-300=1600
100x+15600=1600
100x=-14000
x=-140
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