tim x biet x + 5 = 8
tim x biet : /x+5/+/3-x/=8
Tim x, biet : 5/4 nhan x = 5/8 + 3/12
tim x biet x:8=104 du 5
tim x biet 5/4*(x-8)=-5/3(14-1/2)
Tim x biet : ( x + 1 ) + ( x + 2 ) ( x + 3 ) + ( x +4 ) + ( x + 5 ) = 4 + 5 + 6 + 7 + 8
Ta có : ( x+1 ) + ( x + 2 ) + ( x + 3 ) + ( x + 4 ) + ( x + 5 ) = 30
( x + x + x +x +x ) + ( 1 + 2 + 3 + 4 + 5 ) = 30
x * 5 + 15 = 30
x * 5 = 30 - 15
x * 5 = 15
x = 15 : 5
x = 3
Vậy x = 3
Duyệt đi , chúc bạn học giỏi
(x + 1) + (x + 2) + (x + 3) + (x + 4) + (x + 5) = 4 + 5 + 6 + 7 + 8
x + 1 + x + 2 + x + 3 + x + 4 + x + 5 = 30
\(x\)x 5 + 15 = 30
\(x\)x 5 = 30 - 15 = 15
x = 15 : 5 = 3
tim x biet:5/x-8/x=-1.x=...............
tim so nguyen x biet x+5-6+8-9+3-5+9-10=9
tim x biet 1- (5/3/8 + x - 7/5/24 ) / 16/2/3 =0
Tim X biet X=6/5*7/6*8/7*....*2015/2014 ?