解方程求分部运算:X+50%X=8.5 (1—75%)X=42 20—20%X=3.6 30%X+15%X=27
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![解方程求分部运算:X+50%X=8.5 (1—75%)X=42 20—20%X=3.6 30%X+15%X=27](/uploads/image/z/442795-67-5.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%E6%B1%82%E5%88%86%E9%83%A8%E8%BF%90%E7%AE%97%EF%BC%9AX%2B50%25X%3D8.5+%EF%BC%881%E2%80%9475%25%EF%BC%89X%3D42+20%E2%80%9420%25X%3D3.6+30%25X%EF%BC%8B15%25X%3D27)
解方程求分部运算:X+50%X=8.5 (1—75%)X=42 20—20%X=3.6 30%X+15%X=27
解方程求分部运算:X+50%X=8.5 (1—75%)X=42 20—20%X=3.6 30%X+15%X=27
解方程求分部运算:X+50%X=8.5 (1—75%)X=42 20—20%X=3.6 30%X+15%X=27
解1题
x+50℅x=8.5
1.5x=8.5
x=8.5÷1.5
x=17/3
解2题
(1-75℅)x=42
25℅x=42
x=42÷25℅
x=168
解3题
20-20℅x=3.6
20℅x=20-3.6
0.2x=16.4
x=16.4÷0.2
x=82
解4题
30℅x+15℅x=27
45℅x=27
x=27÷45℅
x=60