解方程组:{x+2y=3,7x-4y=3

解方程组8y+5x=84y-3x=7 方程组 因式分解 4x^3-4x^2y-(x-y) 解方程组 3x-5y=7 4x+2y=5解方程组3x-5y=74x+2y=5 解方程组｛ 3x-4y(x-y)=3 { 2x-3y=1 解方程组3x+5(x+y)=2 3y-2(x+y)=4 解方程组x+y/3=x-y/4 2x+3y=11 解方程组,x+y/2=3x-2y=10+6x+y/4, 解方程组 y=2x x+y=3 解方程组3分之x-y=2分之 x+y解方程组3分之x-y=2分之 x+y；2x-5y=7 解方程组解方程组｛y=2x-7｛x+y+z=1｛3x-z=4 解方程组24/(x+y) +24/(x-y) = 7/3 ,8/(x+y) +18/(x-y) = 4/3 解方程组x+y/5+x-y/7=2 3(x+y)+x-y/7=16 解方程组:2(x +y)-3(x-y)=3;4(x+ y)+ 3（x-y）=15 解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20 解方程组2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16 解方程组：2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16 解方程组⑴(x+y)/2-(x-y)/3=6,⑵3(x+y)=4(x-y) 解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3 解方程组4（x+y)-3(x-y)=14;(x+y)/2+(x+y)/3=6