Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
5 x y - 270 = 1365 ( 2 x y + 76 ) x 2 = 432 - 7 x 8
5 x y = 1365 + 270 ( 2 x y + 76 ) x 2 = 432 - 56
5 x y = 1535 ( 2 x y + 76 ) x 2 = 376
y = 1635 : 5 2 x y + 76 = 376 : 2
y = 327 2 x y + 76 = 188
Vậy y = 327 2 x y = 188 - 76
2 x y = 112
y = 112 : 2
y = 56
\(5\times y-270=1365\)
\(\Rightarrow5\times y=1365+270\)
\(\Rightarrow5\times y=1635\)
\(\Rightarrow y=1635:5\)
\(\Rightarrow y=327\)
(864 x11 -432 x4 ) :[ 432 x (135-132) ]
=(9504-1728) : ( 432 x 3 )
=7776 : 1296
= 6
( click đúng nha bạn )
432 x 2 x 48 - 432 x 96
___________________
432 x 2 : 48 x 432
432 x 96 - 432 x 96
= __________________
432 : 24 x 432
432 x ( 96 - 96 )
=______________
432 : 24 x 432
0
=_______________
432 : 24 x 432
=0
a: =>3x-15-2x+6=51
=>x-9=51
=>x=60
b: =>432-2x+22+3x-15=200
=>x+439=200
=>x=-239
c: =>3x+17-4x+13=0
=>30-x=0
=>x=30
d: =>x-3-3x+6=-11-21=-32
=>-2x+3=-32
=>-2x=-35
=>x=35/2
\(3\cdot\left(x-5\right)-2\cdot\left(x-3\right)=51\)
\(\Rightarrow3x-15-2x+6=51\)
\(\Rightarrow x-9=51\)
\(\Rightarrow x=51+9\)
\(\Rightarrow x=60\)
b) \(432-2\cdot\left(x-11\right)+3\cdot\left(x-5\right)=200\)
\(\Rightarrow432-2x+22+3x-15=200\)
\(\Rightarrow x+439=200\)
\(\Rightarrow x=200-439\)
\(\Rightarrow x=-239\)
c) \(3x+17=4x-13\)
\(\Rightarrow4x-3x=17+13\)
\(\Rightarrow x=30\)
d) \(\left(x-3\right)+21=3\cdot\left(x-2\right)-11\)
\(\Rightarrow x-3+21=3x-6-11\)
\(\Rightarrow x+18=3x-17\)
\(\Rightarrow3x-x=18+17\)
\(\Rightarrow2x=35\)
\(\Rightarrow x=\dfrac{35}{2}\)
a, =87[-17+(-83)]
=87.(-100)
=-8700
b, =(-45)+-(45).432-432.(-45)
(-45)+(-45)(432-432)
=(-45)+0
=-45
3x + 5 . 3x+1 = 432
3x + 5 . 3x . 3 = 432
3x + 15 . 3x = 432
3x . ( 1 + 15 ) = 432
3x . 16 = 432
3x = 432 : 16
3x = 27
3x = 33
=> x = 3
Vậy x = 3
3x + 5.3.3x = 432 <=> 3x.( 1+ 5.3) = 432 <=> 3x = 432/16 = 27 = 33 <=> x=3
x=\(\frac{55}{7}\)
x=55/7