Violympic toán 6
Các câu hỏi tương tự
tim so tu nhien x biet rang 115 : x du 5, 150 :x du 10
Bài 5.Tìm x N, sao cho:a)3636 : (12x –91) 36b)(x : 23 + 45) . 67 8911c)[(6x –39) : 7]. 4 12d)(3x –24). 73 2. 74e)x(x –10) 0f)(x+ 1). (x –2) 0g)(9 –x)3 64h)3x 81i)2 . 3x 10 . 312+ 8 . 312j)(19x + 2.52) : 14 (13 -8)2-42
Đọc tiếp
Bài 5.Tìm x N, sao cho:
a)3636 : (12x –91) = 36
b)(x : 23 + 45) . 67 = 8911
c)[(6x –39) : 7]. 4 = 12
d)(3x –24). 73= 2. 74
e)x(x –10) = 0
f)(x+ 1). (x –2) = 0
g)(9 –x)3= 64
h)3x= 81
i)2 . 3x= 10 . 312+ 8 . 312
j)(19x + 2.52) : 14 = (13 -8)2-42
tim x biet x chia 1/2 + x chia cho 1/4 + ..............+ x chia 1/512 = 510
tim so tu nhien x biet rang so lon la 270 tim so nho
3. tìm số nguyên x biết
a. 3x-5=-7-13
b. |x|-10=-3
c. x+2(x-9)=0
Tim X biet;1+3+5+7+...+(2n-1)
Tim x, y biet:
a) x/15=6/y=3/5
b) 6/14=x/-21=-12/y
tim x (x+3).(x+4)⋮3x
tim x
( x + 11 ) + ( x + 12 ) + ( x + 13 ) + .... + ( x + 50 ) = 1620