a) 5x + 2x = 62 - 50
b) 5x + x = 150 : 2 + 3
c) 6x + x = 511 : 59 + 31
d) 5x + 3x = 36 : 33.4 + 12
4x + 2x = 68 – 219 : 216
tìm x biết 511 - x + 72 = 146 + x - 31
Tìm x, biết:
a ) x + 7 5 = 9 8 . 4 27 ; b ) x : 5 11 = − 4 12 .6.
Tìm x, biết:
a ) x − 1 5 = 7 11 . 3 21 ; b ) x 25 = − 3 15 . 7 6 ;
c ) x + 7 5 = 9 8 . 4 27 ; d ) x : 5 11 = − 4 12 .6
Tìm x:
x:1/2+x:1/4 + x:1/8+...+x:1/512=511
Tìm x biết:
x:1/2+x:1/4+x:1/8+.......+x:1/512=511
x : 1/2 +x : 1/4 + x: 1/8 + ......+ x : 1/512 =511
tìm x thuộc z
Tìm x,biết
\(x:\frac{1}{2}+x:\frac{1}{4}+x:\frac{1}{8}+...+x:\frac{1}{512}=511\)
x:1/2+x:1/4+x:1/8+.....+x:1/512=511
Tìm x, biết:
\(x:\frac{1}{2}+x:\frac{1}{4}+x:\frac{1}{8}+...+x:\frac{1}{512}=511\)