5x-1-25=600
5x = 600+1+25
5x = 626
Mình hỏi chút đề bài có gì sai sai đúng không bạn?
De minh ghi lai dau ^ la so mu
5^x-1-25=600
5x-1-25=600
=>5x-1=600+25
=>5x-1=625
=>5x-1=54
=>x-1=4
=>x=4+1
=>x=5
5x-1=600+25
5x-1=625
5x=625
5x=625
5x=54
=>x=4
5x-1-25=600
5x = 600+1+25
5x = 626
Mình hỏi chút đề bài có gì sai sai đúng không bạn?
De minh ghi lai dau ^ la so mu
5^x-1-25=600
5x-1-25=600
=>5x-1=600+25
=>5x-1=625
=>5x-1=54
=>x-1=4
=>x=4+1
=>x=5
5x-1=600+25
5x-1=625
5x=625
5x=625
5x=54
=>x=4
Tim x biet -1+3+(-5)+7+...+x=600
giup minh voi
Tim so nguyen x biet
5x + 1 - 5x - 1 = 600
3x + 1 - 3x - 2 = 702
tim so nguyen x biet
5x+1 - 5x-1 = 600
3x+1 - 3x-2 = 702
Tim so nguyen x biet
\(|\)x - 3\(|\)- 16 = -4
5x + 1 - 5x -1 = 600
bai 1)tim x biet
a )24-(36+5)=x
b)14-21=(13-x)-(15+8)
bai 2) tim x biet
a)17-x=-25+(-16+9)
b)3x-21=-19-(-2x)
tim x,biet
a, 1-[15+11] = x-[25-9]
b,2-x=17-[-5]
c, x-12=[-9]-15
d,9-25=[ 7- x] -[25+7]
tim so nguyen x, biet (x^2-5).(x^2-25)<0
1) chung to rang(a-b)-(c-d)+(b+c)=a+d
2) tim x thuoc Z biet x+(x-5)-(x-25)=-1984
Tim x ,biet :100:2 nhan {x+1]=25