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B) 2017100.(x-60)=2017101
x-60=2017101 : 2017100
x-60 = 2017
x= 2017 + 60
x= 2077
C) 5.x+3.(10-x)+x=45
5x+30 - 3x + x = 45
3x = 45-30
3x = 15
x= 5
A) (17x-25):8+65=92
(17x-25):8 = 81 - 65
(17x-25):8 = 16
17x-25= 16:8
17x = 2+27
17x = 29
x= 29/17
a) (17.x - 25 ) : 8 = 92 : 65= 92/65
17x - 25 = 92/65.8
17x = 2361/65
x= 2361/65 : 17=2361/1105
b) x- 60 = 2017101 - 2017100
x-60 = 2017
x = 2017 + 60
x = 2077
c) 5x . 30-3x.x = 45
5x.3x.x = 45 + 30 = 75
15x.x = 75
a) \(\left(17x-25\right):8+65=9^2\)
\(\left(17x-25\right).\frac{1}{8}+65=81\)
\(\frac{17}{8}x-\frac{25}{8}=81-65\)
\(\frac{17}{8}x-\frac{25}{8}=16\)
\(\frac{17}{8}x=16+\frac{25}{8}\)
\(\frac{17}{8}x=\frac{128}{8}+\frac{25}{8}\)
\(\frac{17}{8}x=\frac{153}{8}\)
\(x=\frac{153}{8}:\frac{17}{8}\)
\(x=\frac{153}{8}.\frac{8}{17}\)
\(x=\frac{153}{17}\)
\(x=9\)
vay \(x=9\)
b) \(80-\left(4.5^2-3.2^3\right)=2^{10}-\left(x-4\right)\)
\(80-\left(100-24\right)=1024-x+4\)
\(80-76=1028-x\)
\(x=1028-80+76\)
\(x=1024\)
vay \(x=1024\)
a) -65 .( 87 - 17 ) -87 .( 17 - 65 )
= ( - 65 ) . 87 + 17 - 87 . 17 + 65
= { ( - 65 ) + 65 } . 87 + 17
= 0 . 87 + 17
= 17
b) -215 . [ 14 + ( -236 ) ] + 215 . ( 14 - 236 )
= -215 . 14 + ( - 236 ) + 215 . 14 - 236
= [ ( - 215 ) + 215 ] . 14 + { ( - 236 - 236 }
= 0 . 14 + 0
= 0
a)17.65+17.35-x=1570
17.(65+35)-x=1570
17.100-x=1570
1700-x=1570
x=1700-1570=130
b)x+16.14+9.4=7.9.12+63.88
x+224+36=756+5544
x+260 =6300
x=6300-260=6040
c)x.2^3=2^6
x =2^6:2^3
x =2^3=8
(17.x-25):8+65=9^2
(17.x-25):8+65=81
(17.x-25):8 =81-65
(17.x-25):8 =16
17.x-25 = 16.8
17.x-25 =128
17.x =128+25
17.x =153
x =153:17
Vậy x =9
mik nhaaaa