Question

已知x-y+3的绝对值与(x+3y-2)的平方互为相反数,求x与y的值

Answer 1

x-y+3的绝对值与(x+3y-2)的平方互为相反数

则

x-y+3=0

x+3y-2=0

解得

x=-7/4

y=5/4