TIM X:
(2,8X-32):2/3=90
(Xx0,25+1999)x2000=(53+1999)x2000
71+65x4=X +140/X +260
chỗ X +140/X là phân số riêng sau đó mới cộng 260
Tìm x
\(Xx1999+1999x199,8\)
\(\left(Xx0,25+1999\right)x2000=\left(53+1999\right)x2000\)
\(71+65x4=\frac{x+140}{x}+260\)
Nhanh thì tick
(x . 0,25- 1999) x2000=(53+1999)x2000
( X x 0,25 + 1999) x 2000=( 53+1999) x2000
Tìm x:
a) (X x 0,25 + 1999) x 2000 = ( 53 + 1999 ) x 2000
b) 71 + 65 x 4 = \(\dfrac{x+140}{x}\) + 260
tim x
a, ( x 0,25+1999).2000=(53+1999).2000
b, 71+65.4=x+140/x+260
tìm x
( x * 0,25 + 1999 ) * 2000 = ( 53 + 1999 ) * 2000
71 + 65 * 4 = \(\frac{x+140}{x}\) + 260
1 tìm x
a , ( x + 1 ) + ( x + 4 ) + ( x + 7 ) + ( x + 10) + ..........+ ( x + 28 ) = 155
b, ( x x 0,25 + 1999 ) x 2000 = ( 53 + 1999 ) x 2000
c, 71 + 65 x 4 = \(\frac{x+140}{x}\)x 260
Tìm x :
a) \(\times.\left(0,25+1999\right).2000=\left(53.1999\right).2000\)
b) 71 + 65 x 4 = \(\frac{x+140}{x}+260\)
Tìm X:
71+65x4=X+140/X+260