(2x-y)/3=(x+y)/4 -1( 2x-y)/3=(x+y)/4 -1(6(x+y)=4(2x-y)+16解二元一次方程组_数学解答

(2x-y)/3=(x+y)/4 -1
( 2x-y)/3=(x+y)/4 -1
(6(x+y)=4(2x-y)+16
解二元一次方程组

人气：189 ℃　时间：2020-06-18 09:23:05

解答

( 2x-y)/3=(x+y)/4 -1 8x-4y=3x+3y-3 5x=7y-3
6(x+y)=4(2x-y)+16 3x+3y=4x-2y+8 x=5y-8
25y-40=7y-3 18y=37 y=37/18 x=41/18