数学二元一次方程组(1)2x-3y=5,3x+2y=1;(2)3分之x-2y - 2分之x+2y=-1,5(x-2y)-4(x+2y)=-1;(3)2x-5y=2,4x-11y=2;(4)x+1=5(y+2),3(2x-5)-4(3y+4)=5;(5)3分之3x+2y = 3分之5y+12x=-1;(6)|3x-2y-3|+(7x+3y-53)²=0

问题描述:

数学二元一次方程组
(1)
2x-3y=5,
3x+2y=1;
(2)
3分之x-2y - 2分之x+2y=-1,
5(x-2y)-4(x+2y)=-1;
(3)
2x-5y=2,
4x-11y=2;
(4)
x+1=5(y+2),
3(2x-5)-4(3y+4)=5;
(5)
3分之3x+2y = 3分之5y+12x=-1;
(6)
|3x-2y-3|+(7x+3y-53)²=0