解方程活接比例:-3x+6=8 2(x-3)+9(x-3)-4(x-3)=0 x:3/5=2:13
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解方程活接比例:-3x+6=8 2(x-3)+9(x-3)-4(x-3)=0 x:3/5=2:13
x-0.8x-60=16 -0.4x+0.1=-0.5x+0.2 x+1/3-x-2/6=4-x/2-1
x-0.8x-60=16 -0.4x+0.1=-0.5x+0.2 x+1/3-x-2/6=4-x/2-1
-3x+6=8
-3x=8-6
x=-2/3
2(x-3)+9(x-3)-4(x-3)=0
7(x-3)=0
x-3=0
x=3
x:3/5=2:13
13x=3/5×2
x=6/65
x-0.8x-60=16
0.2x=60+16
x=76÷0.2
x=380
-0.4x+0.1=-0.5x+0.2
-0.4x+0.5x=0.2-0.1
0.1x=0.1
x=1
x+1/3-x-2/6=4-x/2-1
乘以12得
4(x+1)-2(x-2)=6(4-x)-12
4x+4-2x+4=24-6x-12
2x+6x=12-8
8x=4
x=1/2
-3x=8-6
x=-2/3
2(x-3)+9(x-3)-4(x-3)=0
7(x-3)=0
x-3=0
x=3
x:3/5=2:13
13x=3/5×2
x=6/65
x-0.8x-60=16
0.2x=60+16
x=76÷0.2
x=380
-0.4x+0.1=-0.5x+0.2
-0.4x+0.5x=0.2-0.1
0.1x=0.1
x=1
x+1/3-x-2/6=4-x/2-1
乘以12得
4(x+1)-2(x-2)=6(4-x)-12
4x+4-2x+4=24-6x-12
2x+6x=12-8
8x=4
x=1/2
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