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3636 : ( 12 x y - 91 ) = 36
12 x y-91=3636:36=101
12 x y=101+91=192
=>y=192:12=16
3636:(12xy-91)=36
12 x y-91=3636:36
12 x y -91=101
12 x y=101-91
12 x y=10
y=12:10
y=1,2
Câu 1:71+(26-3x):5=75
=>(26-3x):5=75-71
=>26-3x=4*5
=>3x=26-20
=>x=6:3
=>x=2
Câu 2:3636:(12x-91)=36
=>12x-91=3636:36
=>12x=101+91
=>x=192:12
=>x=16
Câu 1 :\(71+\left(26-3xX\right):5=75\)
\(\left(26-3xX\right):5=75-71\)
\(\left(26-3xX\right):5=4\)
\(26-3xX=4x5\)
\(26-3xX=20\)
\(3xX=26-20\)
\(3xX=6\)
\(X=6:3\)
\(X=2\)
Câu 2 : \(3636:\left(12xX-91\right)=36\)
\(12xX-91=101\)
\(12xX=101+91\)
\(12xX=192\)
\(X=192:12\)
\(X=16\)
a ) ( x + 74 ) - 318 = 200
x + 74 = 200 + 318
x + 74 = 518
x = 518 - 74
x = 444
b ) 3636 : ( 12 . x - 91 ) = 36
12 . x - 91 = 3636 : 36
12 . x - 91 = 101
12 . x = 101 + 91
12 . x = 192
x = 192 : 12
x = 16
c ) ( x : 23 + 45 ) . 67 = 8911
x : 23 + 45 = 8911 : 67
x : 23 + 45 = 133
x : 23 = 133 - 45
x : 23 = 88
x = 88 . 23
x = 2024
d ) ( 3 . x - 6 ) + 57 = 60
3 . x - 6 = 60 - 57
3 . x - 6 = 3
3 . x = 3 + 6
3 . x = 9
x = 9 : 3
x = 3
\(a)\) \(\left(x+74\right)-318=200\)
\(x+74=518\)
\(x=444\)
Vậy x = 444
\(b)\) \(3636:\left(12x-91\right)=36\)
\(12x-91=101\)
\(12x=192\)
\(x=16\)
Vậy x = 16
\(c)\) \(\left(x:23+45\right)67=8911\)
\(x:23+45=133\)
\(x:23=88\)
\(x=2024\)
Vậy x = 2024
\(d)\left(3x-6\right)+57=60\)
\(3x-6=3\)
\(3x=9\)
\(x=3\)
Vậy x = 3
3636 : ( 12x - 91 ) = 36
12x - 91 = 3636 :36
12x - 91 = 101
12x = 101 + 91
12x = 192
x = 192 : 12
x = 16
vậy x = 16
460 + 85 . 4 = ( x + 200 ) : 4
460 + 340 = ( x + 200 ) : 4
800 = ( x + 200 ) : 4
( x + 200 ) : 4 = 800
x + 200 = 800 . 4
x + 200 = 3200
x = 3200 - 200
x = 3000
vậy x = 3000
k mk nha bạn
thanks nhìu ^,^
\(3636:\left(12x-91\right)=36\)
\(\Rightarrow12x-91=3636:36\)
\(\Rightarrow12x-91=101\)
\(\Rightarrow12x=101+91\)
\(\Rightarrow12x=192\)
\(\Rightarrow x=16\)
\(460+85\cdot4=\left(x+200\right):4\)
\(\Rightarrow460+340=\left(x+200\right):4\)
\(\Rightarrow800=\left(x+200\right):4\)
\(\Rightarrow x+200=800\cdot4\)
\(\Rightarrow x+200=3200\)
\(\Rightarrow x=3200-200\)
\(\Rightarrow x=3000\)
3636 : (12x - 91) = 36
12x - 91 = 3636 : 36
12x - 91 = 101
12x = 101 + 91
12x = 192
x = 192 : 12
x = 16
Ủng hộ mk nha ☆_★^_-
3636:(12x-91) = 36
=> 12x - 91 = 3636 : 36
=> 12x - 91 = 101
=> 12x = 101 + 91
=> 12x = 192
=> x = 192 : 12
=> x = 96
Vậy x = 96
Bai 1 :
a/ \(x:1,4+2,8=8,4\)
\(x:1,4=8,4-2,8\)
\(x:1,4=5,6\)
\(x=5,6\times1,4\)
\(x=7,84\)
b/ \(2,8:x-1,5=2,3:5,75\)
\(2,8:x-1,5=\frac{2}{5}\)
\(2,8:x=\frac{2}{5}+1,5\)
\(2,8:x=\frac{19}{10}=1,9\)
\(\Rightarrow x=2,8:1,9=\frac{28}{19}\)
Bai 2 :
a/ \(575-\left(6\times x+70\right)=445\)
\(6\times x+70=575-445\)
\(6\times x+70=130\)
\(6\times x=130-70\)
\(\Rightarrow6\times x=60\Rightarrow x=10\)
b/ \(315+\left(125-x\right)=435\)
\(125-x=435-315\)
\(125-x=120\)
\(\Rightarrow x=5\)
c/ \(\left(x-105\right):21=15\)
\(x-105=15\times21\)
\(x-105=315\)
\(\Rightarrow x=420\)
d/ \(3636:\left(12\times x-91\right)=36\)
\(12\times x-91=3636:36\)
\(12\times x-91=101\)
\(12\times x=101+91\)
\(12\times x=192\)
\(\Rightarrow x=16\)
e/ \(12\times\left(x-5\right)+73=20\)
\(12\times\left(x-5\right)=20-73\)
\(12\times\left(x-5\right)=-53\)
\(x-5=-53:12\)
\(x-5=\frac{-53}{12}\)
\(\Rightarrow x=\frac{-53}{12}+5\)
\(\Rightarrow x=\frac{7}{12}\)
f/ \(\left[\left(10-x\right)\times2+5\right]:3-2=3\)
\(\left[\left(10-x\right)\times2+5\right]:3=3+2\)
\(\left[\left(10-x\right)\times2+5\right]:3=5\)
\(\left[\left(10-x\right)\times2+5\right]=5\times3\)
\(\left(10-x\right)\times2+5=15\)
\(\left(10-x\right)\times2=15-5\)
\(\left(10-x\right)\times2=10\)
\(10-x=10:2\)
\(10-x=5\)
\(\Rightarrow x=5\)
3636 : (12 . x - 91) = 36
12 . x - 91 = 3636 : 36
12 . x - 91 = 101
12 . x - 91 = 101 + 91
12 . x = 192
x = 192 : 12
x = 16
Vậy x = 16