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0.2分之0.5x%0.3分之0.1x+2等于%1

(0.1x+0.3)/0.2 + 2 = (0.4x-1)/0.5 (x+3)/2 + 2 = (4x-10)/5 5(x+3) + 20 = 2(4x-10) 5x+15 + 20 = 8x-20 5x+35 = 8x-20 5x-8x = -20-35 -3x = -55 x = 55/3

(0.2分之x-2)-(0.5分之x+1)=3 5(x-2)-2(x+1)=3 5x-10-2x-2=3 5x-2x=3+12 3x=15 x=5 请好评 如果你认可我的回答,敬请及时采纳, ~如果你认可我的回答,请及时点击【采纳为满意回答】按钮~ ~手机提问的朋友在客户端右上角评价点【满意】即可...

y-1/4=4x+9/20-1② 由②得 y-0.25=4x+0.45-1 y =4x-0.3 将y =4x-0.3 代入①,得到 1-0.3(4x-0.3-2)=x+0.2 1-1.2x+0.69=x+0.2 2.2x =1.49 x =149/220 y =53/22

(x - 1) / 0.3 - (x + 1) / 0.5 = 1.2 (x - 1) / (3/10) - (x + 1) / (5/10) = 1.2 (x - 1) X 10 / 3 - (x + 1) X 10 / 5 = 1.2 10 (x - 1) / 3 - (x + 1) X 2 = 1.2 3 X (10x - 10) / 3 - (2x + 2) X 3 = 1.2 X 3 10x - 10 - 6x - 6 = 3.6 4x -...

您好: 0.03分之0.1x-0.3+0.2分之2x-5=1 两边乘0.6 20( 0.1x-0.3)+3(2x-5)=0.6 2x-6+6x-15=0.6 8x-21=0.6 8x=21.6 x=2.7 ~如果你认可我的回答,请及时点击【采纳为满意回答】按钮~ ~手机提问者在客户端右上角评价点【满意】即可。 ~你的采纳是...

(0.1x-0.2)/0.02-(x+1)/0.5=3 (5x-10)-(2x+2)=3 3x-12=3 3x=15 x=5

解:由以知,得: 3x+5y=6......(1) 5x-3y=2......(2) 解(1),(2)关于x,y的二元一次方程组,得: x=-0.5,y=1.5

0.3x+1/2-x-5/3=1

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