(y+5)(x-2+y)+6=30求X+Y的值

来源：学生作业帮助网编辑：作业帮时间：2024/05/04 15:46:27

(y+5)(x-2+y)+6=30求X+Y的值
(y+5)(x-2+y)+6=30求X+Y的值

(y+5)(x-2+y)+6=30求X+Y的值
(y+5)(x-2+y)+6=30
(y+5)(x+y)-2(y+5)=24
(y+5)(x+y)=24+2(y+5)
x+y=24/(y+5)+2

(y+5)(x-2+y)+6=30
(y+5)(x-2+y)=24 x+y=2+24/(y+5)
x,y在整数范围内时
当y+5=1 则x-2+y=24 x+y=26 当y+5=24 则 x-2+y=1 x+y=3
y+5=2 x-2+y=12 ...

全部展开

(y+5)(x-2+y)+6=30
(y+5)(x-2+y)=24 x+y=2+24/(y+5)
x,y在整数范围内时
当y+5=1 则x-2+y=24 x+y=26 当y+5=24 则 x-2+y=1 x+y=3
y+5=2 x-2+y=12 x+y=14 y+5=12 x-2+y= 2 x+y=4
y+5=3 x-2+y=8 x+y=10 y+5=8 x-2+y=3 x+y=5
y+5=4 x-2+y=6 x+y=8 y+5=6 x-2+y=4 x+y=6

收起

已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 6x+5Y=31 2X+3Y=17求X求 Y (y+5)(x-2+y)+6=30求X+Y的值求(X+Y)(X-Y)(X²+Y²),X=5 Y=2, x,y 满足x(x-2)-y(y-6)=-10,求x,y的值 (x-y)/(x+y)=3求( 3x-2y-1)/(x+y-5) 已知x+5y=6,求x(x+5y)+30y的值 6x+5y+3z=100 x+y+z=30 求 x y 已知（x+y)(x+y-2)+6=30,求x+y的值. 已知2/y-5/x=16,5/y+6/x=13,求x、y. 6x-2y=5 8x-3y=-5 求x,y 已知x+y=-6,x-y=5,求x^2-y^2 5:(2x+y)=6:(x-2y),求x:y 已知:2x-y/x+y=1/5,求2x+5y/6x-2y的值 x+y/2+ x-y/2=6 2(x+y)-3x+3y=24 求X Y {(x+y)/2+(x-y)/3=1,(x+y)-5(x-y)=2.求x=?,y=? 已知X*X+Y*Y+6X-8Y+25=0 求（Y/X)+(X/Y)-2=? x*x+2x-y*y+6y-8=0,x+y不等于2,求x-y的值