1,4+X+X=15
1,4+X+Xx1=15
{1,4+1}xX=15
2,4xX=15
X=15:2,4
X=6,25
\(4+2x=15\Leftrightarrow2x=15-4\Leftrightarrow2x=11\Leftrightarrow x=\frac{11}{2}\)
X:0.25+X:0.125+X:0.5=1.4
( 1.1 x 1.2 x 1.3 x 1.4 x 1.5 x 1.6 ) x ( 1.25 - 0.25 x 5 ) giúp mk với
Toán tìm x :
1.2 x 5 + 1.4 : X = 6.7
X bằng bao nhiêu ?
Tính nhanh
0,2 x 17 x 7+ 0.14 x 520 +31 x 1.4
a) X/2 x 1.4 + 1/5 + X x 2 = 23,1
b) X x1/4 + X x1/5 + x x2 = 19,6
1.2+1.4+.......+9.8
x*4+x*6+x*8+2016
1.1+1.3+1.5+...+9.9
\(\dfrac{1}{1.4}+\dfrac{1}{4.7}+\dfrac{1}{7.10}+\dfrac{1}{10.13}+...+\dfrac{1}{x.\left(x+3\right)}=\dfrac{34}{103}\)
Tìm x
tính bằng cách nhanh nhất:
1.4 x26 x5.6
\(\dfrac{6}{11}\) x \(\dfrac{3}{7}\) + \(\dfrac{3}{7}\) x \(\dfrac{5}{11}\)
870 - x : 11 x 87 = 261 x : 0.25 x 2.3 = 6.9 2 x (y + y ) = 8.16 y x 1.5 + y + y x 7.5 = 59.8 m : 1/6 + m : 0.25 = 152 m : 1/3 + m : 0.25 = 1.4 giải dùm mình gấp nhé
