(x-3y)/3 - 1/3 = 1
x-3y-1 = 3
x-3y = 4(1)
2x - (x-3y)/4 = 5
8x - x + 3y = 20
7x + 3y = 20(2)
(1) + (2)
8x = 24
x = 3
y = -1/3
x-3y/3-1/3=1 2x-x-3y/4=5二元一次方程组怎么解
x-3y/3-1/3=1 2x-x-3y/4=5二元一次方程组怎么解
=、
=、
数学人气：285 ℃时间：2020-04-09 09:27:15
优质解答
我来回答
类似推荐