3x+4y=7 11x+10y=35 解方程组（过程,谢咯
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例X=1 y=21.X+Y=5 X-Y=15 2.2X+3Y=4 5X+6Y=7 3.X+3Y=5 3X+Y=-1 4.2X+Y=3 3X+5Y=11 5.4X+3Y=6 2X+Y=4 6.X+Y=180 X=3Y-10 7.3X-2Y=3 2X-Y=7 8.5X+3Y=7Y X+Y=45 9.3X+4Y=126X+8Y=24 X:6Y=1:4 10.X+Y=138 X-45=Y+53 11.X+Y=60 14Y=20X 12.2X+3Y=15.5 5X+6Y=35 13.X+Y=170 3
3x+4y=7 11x+10y=35 解方程组（过程,谢咯
3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y怎么解
代入法解方程组(1)2y-8=-x (2)x-y=5 (3)2x+3y=7 (4)y=x+1 4x+3y=10 4x+3y=7 3x-6y=0 3x+4y=11 (5)y=x+1 3x+4y=11(6) x-5y=03x+2y=17记得详细一点..
3(x+y)-2(x-y)=11 4(x+y)+3(x-y)=9
4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
解方程组：①3x+4y=19；x-y=4②x-y=3；2y+3（x-y）=11③x/2-y + 1/3=1；3x+2y=10
解方程组 10（x-y)=3(x+y)+15 6(x+y)=4(2x-y)+1610（x-y)=3(x+y)+156(x+y)=4(2x-y)+16
解方程组 10（x-y)=3(x+y)+15 6(x+y)=4(2x-y)+1610（x-y)=3(x+y)+156(x+y)=4(2x-y)+16分开的。
计算3x/(x-3y)+(x+y)/(4y-x)-7y/(x-4y)=?
解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27
解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27全过程、快
大括号x+y/2+x-y/3=11/6 4(x+y)-5(x-y)=7 快
谁会解10x+y=6(x+y)+3 10y+x=4(x+y)+9
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/3=x-y/4 2x+3y=11
解方程组,x+y/2=3x-2y=10+6x+y/4,