x+3=-2,则x=-2+______ 1/3x=7y,则x=______
x+3=-2,则x=-2+______ 1/3x=7y,则x=______
1.若3x-2y=0,则(x+y):(x-y)=______
若x+3y=3x+2y=7,则x=______,y=______.
若2x+3y-1=y-x-8=x+6,则2x-y=______.
若3x-4y=0,则x/y=______,(x-y)/y=______,(3x+2y)/(2x+3y)=_____.
y=0.5x(x+2)(3x-1) 求x轴交点.
已知(x-3)2+|2x-3y+6|=0,则x=______,y=______.
若|3x-y-7|+(5x+2y-8)2=0,则x-y=______.
已知(x+y+2)2+|2x-3y-1|=0,则x+y=______.
已知x+y=3,则7-2x-2y的值为______.
已知|x-3|+|y+1|=0,则3x-2y=______.
2x+1 5 _____ =______ 解方程 x²+x 6x+6