Các câu hỏi tương tự
Tim x,y,z biet:
(2|x|+5)/3=(3|y|-1)/5=(3-z)/7 va 2|x|+7|y|+3z=-14
Tim x,y,z biet:
x+1/ 3 = y+2/ 4 = z+3/ 5 va x+y+z= 18
Tim x,y,z biet (x-1)/2= (y+3)/4 =(z-5)/6 va 5z-3x-4y
Tim x,z,y biet
x/2=y/3;y/4=z/5 va x+y-z=10
tim x,y biet 3/5.x = 2/3.y va x2 - y2 = 38
Tim hai so x va y ,biet :x÷2=y÷(-5) va x-y=-7
tim x,y,z biet : x/2=y/3=z/5 va x-2y+z=10
tim x,y biet (3/5).x = (2/3).y va x2 - y2 = 38
tim x, y, z biet:
2/3.x=3/4.y=4/5.z va x+y-z=57