Các câu hỏi tương tự
a)Tìm x biết: 1 + 5 + 9 + 13 + 17 +…. + x =507528
Tìm x biết: 1 + 5 + 9 + 13 + 17 +…. + x =507528
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: 1 + 5 + 9 +13 ... + x = 501
1+5+9+...+ x = 507528. Tìm x
tim x biet :1+5+9+13+16+...+x=501501
tim x biet
1/3x+2/5(x-1)=4
1/2-1/3:3x0-=5
tim stn nho nhat chia cho 5, cho 7, cho 9 co so du theo thu tu la 3;4;5
Tinh tong: 1-5/6+7/12-9/20+11/30-13/42+15/56-17/12+19/90
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 x
1+5+9+13+17+.....+x=501501