①4x=5+3x②2x-1=x+3③3y+7=-3y-5④-4x-3=-5x-2⑤3t-6=2t-2⑥2z+1=3-2z
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/20 11:04:42
①4x=5+3x
②2x-1=x+3
③3y+7=-3y-5
④-4x-3=-5x-2
⑤3t-6=2t-2
⑥2z+1=3-2z
⑦-7x-6=22-6x
⑧2y-1=-y+5
⑨3x-5x=8x
②2x-1=x+3
③3y+7=-3y-5
④-4x-3=-5x-2
⑤3t-6=2t-2
⑥2z+1=3-2z
⑦-7x-6=22-6x
⑧2y-1=-y+5
⑨3x-5x=8x
①4x=5+3x 4x-3x=5 x=5
②2x-1=x+3 2x-x=3+1 x=4
③3y+7=-3y-5 3y+3y=-5-7 6y=-12 y=-2
④-4x-3=-5x-2 -4x+5x=3-2 x=1
⑤3t-6=2t-2 3t-2t=6-2 t=4
⑥2z+1=3-2z 2z+2z=3-1 4z=2 x=0.5
⑦-7x-6=22-6x 6x-7x=22+6 x=-28
⑧2y-1=-y+5 3y=6 y=2⑨3x+5x=8x 这题写错了
②2x-1=x+3 2x-x=3+1 x=4
③3y+7=-3y-5 3y+3y=-5-7 6y=-12 y=-2
④-4x-3=-5x-2 -4x+5x=3-2 x=1
⑤3t-6=2t-2 3t-2t=6-2 t=4
⑥2z+1=3-2z 2z+2z=3-1 4z=2 x=0.5
⑦-7x-6=22-6x 6x-7x=22+6 x=-28
⑧2y-1=-y+5 3y=6 y=2⑨3x+5x=8x 这题写错了
解方程一;{x+y-z=6,x-3y+2z=1,3x+2y-z=-7.②{3x+4z=7,2x+3y+z=9,5x-9y
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x-y-z=-1 3x+5y+7z=11 4x-y+2z=-1 分别求出x=?y=?z=?
x/2=y/3=z/5 x+3y-z/x-3y+z
已知x::y:z=3:4:5,(1)求x+y分之z的值;(2)若x+y+z=6,求x,y,z.
2x+5y+4z=6,3x+y-7z=-4,x+y-z=?
已知2x+5y+4z=6 3x+y-7z=-4求x+y-z
5x+3y+2z=2011 4x+6y+7z=2012 求x+y+z
2X+Y+Z=10,X+2Y+Z=-6,X+Y+2Z=8 5X+4Y-3Y=13,2X-3Y+7Z=19,3X-Y=2X
(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuai
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若4x-3y-6z=0,x+2y-7z=0,求代数式5x*5x+2y*2y-z*z/2x*2x-3y*3y-10z*10