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=36x(28+82)+64x(69+41)
=36x110+64x110
=110x(26+64)
=110x100
=11000
**** bn hiền
36x28+36x82+64x69+64x41
=36x(28+82)+64x(69+41)
=36x110+64x110
=110x(36+64)
=110x100
=11000
64:0,5 + 64:0,25 + 64\(\times4\)
= 64 \(\times\) 2 + 64 \(\times\) 4 + 64 \(\times\) 4
= 64 \(\times\) ( 2 + 4 + 4)
= 64 \(\times\) 10
= 640
=36x(28+82)+64x(69+41)
=36x110+64x110
=110x(36+64)
110x100
=11000
36x28+36x82+64x69+64x41
=36x(28+82)+64x(69+41)
=36x110+64x110
=110x(36+64)
=110x100
=11 000
36.28+36.82+64.69+64.41=36.(28+82)+64(69+41)=36.110+64.110=110.(36+64)=110.100=110000
36 x 28 + 36 x 82 + 64 x 69 + 64 x 41
= 36 x ( 28 + 82 ) + 64 x ( 69 + 41 )
= 36 x 100 + 64 x 100
= ( 36 + 64 ) x 100
= 100 x 100
= 10000
( x + y ) - ( x - y ) = 64
=> x + y - x + y = 64
=> 2y = 64
=> y = 32
=> x + y >= 0, 64 > 0 => x - y >= 0 => x >= 32 => x = 32 ( ko chắc )
Vậy x = 32, y = 32
24 x 36 + 0,24 x 36 + 24,24 x 64
= 36 x (24 + 0,24) + 24,24 x 64
= 36 x 24,24 + 24,24 x 64
= 24,24 x ( 36 + 64)
= 24,24 x 100
= 2424
\(x\) x 5 + \(x\) : 4 x 8 + \(x\)= 21 x 64
\(x\) x 5 + \(x\) x 2 + \(x\) = 1344
\(x\) x (5 + 2 + 1) = 1344
\(x\) x 8 = 1344
Ai k mk mk k lại gấp đôi!
x = 168
64 . x - 13 . x - x = 43
x . (64 - 13 - 1 ) = 43
x . 50 = 43
x = 43 : 50
x = \(\frac{43}{50}.\)
\(8,64\times93+8,64:0,5+8,64:0,25+8,64\)
\(=8,64\times93+8,64\times2+8,64\times4+8,64\times1\)
\(=8,64\times\left(92+4+2+1\right)\)
\(=8,64\times100\)
\(=864\)
\(64\%:x=8\)
\(0,64:x=8\)
\(x=0,64:8\)
\(x=0,08\)
tkssss