Các câu hỏi tương tự
tim x:(5x-7-9x):(-2-3x+7)=5-2(x-2)
tim x
a, x-5)^4 =( x-5)^6
b,(x +2) ^5 =2^10
c,5^x :5^2 =125
d, (3x - 2^4) .7^3 =2 . 7^4
2^x+1*2^2014=2^2015 tim x
7x-x=5^21/5^19+3*2^2-7 tìm x
1 )Tim x, y thuoc Z
x + y = x.y
2) Tim x thuoc Z
(x + 1)+(x+3)+(x+5)+...+(x+99)=0(x-3)+(x-2)+(x-1)+...+10+11=11-12(x-5)+7(3-x)=530(x+2)-6(x-5)-24x=100
Tim x
(3/5.x-2/3.x-x)1/7=-5/21
Tim x biet.
a/x+5+x-7+x-9=x-5+x-2
b/9(2x-3)+5=4(4-1)-8
c/2=-(×-1)^5+34
d/7=-|x-5|+10
1.Tim x biết x - 252525 * 3/2 + 3/5 - 3/7 / 3/2 + 1/5 - 1/7 =7/8
2. 9/8 - 9/8 * 2/5 + 2/6 - 2/7 / 3/5 + 3/6 - 3/7 - X = 1
tim x biet 2.(x-5)-3.(x+7)=14
tim so nguyen x a)2-x=5-6 b)7-x=17-(-5) c)|x+3|=7 d)x-(17-x)=x-7 e)(x-2).(5-x)=0