2×(10-0.5y)=-(1.5y+2)
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2×(10-0.5y)=-(1.5y+2)2×(10-0.5y)=-(1.5y+2)2×(10-0.5y)=-(1.5y+2)2×(10-0.5y)=-(1.5y+2)20-y=-1.5y-2-y+1
2×(10-0.5y)=-(1.5y+2)
2×(10-0.5y)=-(1.5y+2)
2×(10-0.5y)=-(1.5y+2)
2×(10-0.5y)=-(1.5y+2)
20-y=-1.5y-2
-y+1.5y=-2-20
0.5y=-22
y=-22/0.5
y=-44
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2(10-0.5y)=一(1.5y十2)
解方程 2(10-0.5y)=-(1.5y+2)
2×(10-0.5y)=-(1.5y+2)
2(10-0.5y)=-(1.5y+2)要过程
2(10-0.5y)=-(1.5y+2)
一元一次方程,急,2(10-0.5y)=-(1.5y+2)
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
y''+2y'+10y=0微分方程的通解
yy''-(y')^2=y^2y'
yy''-(y')^2=y^2y'
y+y'-2y=2x
微分方程y - 2y' + y = x
2y''+y'-y=0
2y-2.4=0.5y-0.6
10+5y+y^2=0
6y^2-11y-10=( ? )(?)
解方程：2(10-5y)=-(1.5y+2)
计算 (y-0.3)/2=(0.7y+0.5)/0.5-1.5应该是(y-0.3)/0.2=(0.7y+0.5)/0.5-1.5