Các câu hỏi tương tự
tim x biet : 71+65*4= ( x +140 / x+260)
71 + 65 x 4 = x + 140 / x + 260.
71 + 65 x 4 = x +140 :x + 260
71+65×4=(x+140)÷x+260
71+65 nhân 4 =x+140/x+260
tìm X
71 + 65 x 4 = X + 140 / X +260
Tìm x:
a) (X x 0,25 + 1999) x 2000 = ( 53 + 1999 ) x 2000
b) 71 + 65 x 4 = \(\dfrac{x+140}{x}\) + 260
Tìm x
71 + 65 x 4 = \(\frac{x+140}{x}+260\)
( x + 1) + ( x+ 4 ) + ( x + 7 ) + (x + 10 ) + ............ + ( x + 28 ) = 155
71 + 65 x 4 = x + 140x + 260