96 x-y= 36

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96x-y=3696x-y=3696x-y=36x+y=96.1x-y=36.21式+2式得2x=132x=661式-2式得2y=60y=30两式相加得x=(96+36)/2=66y=96-x=30x

96 x-y= 36
96 x-y= 36

96 x-y= 36
x+y= 96 .1
x-y= 36.2
1式+2式得
2x=132
x=66
1式-2式得
2y=60
y=30

两式相加得x=(96+36)/2=66
y=96-x=30

x+y= 96 1
x-y= 36 2
1+2
x=66
y=30

x+y= 96 ①
x-y= 36 ②
①+②得
2x=132
x=66
带入①得
y=30

96 x-y= 36 若(X×X+Y×Y)(X×X+Y×Y-5)=36,则X×X+Y×Y＝ x+x+x+y=52 y+y+y+x=36求x 3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 X+X+X+X+Y+Y+Y=36,X+X+Y+Y+Y=24,那么X=【】,Y等于【】.【】 Y+X+X=36 Y-X-X=8 X=?Y=? x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 化简 x / y(x+y) - y / x(x+y) = x(x+y)(x-y)-y(y+x)(y-x)=(x-y)( )填空 x+2y=592x+y=36 y+x+2x=36 3x+3y+2x-2y=36 4x+4y-5x-5y=2 3（x+y）+2（x-y)=36,2（x+y）-3（x-y)=24 3（x+y）+2(x-y)=36,2(x+y)-3(x-y)=24 解二元一次方程 3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 解方程组 x+x+y+y+y=21 ,x+x+y+y+y+y+y=27 ,x ,y=? x+x+y+y+y=21 ,x+x+y+y+y+y+y=27 ,x ,y=? y=x(x