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\(x=255-32\times4=255-12=127\)
\(78+127+35=205+35=240\)
HOK T ~
(1+x) + (2+x) + (3+x) + ...+(10+x) = 75
= (1+2+3+...+10) + 10.X = 75
= 55 + 10.X = 75
= 10.x = 75 - 55
= 10.x = 20
= x = 20 : 10
x= 2
\(=\left(32\cdot57+18\cdot32\right)+75\cdot68\\ =32\cdot\left(57+18\right)+75\cdot68\\ =32\cdot75+75\cdot68\\ =75\cdot\left(32+68\right)=75\cdot100=7500\)
32.57+75.68+18.32
= 32. (57+18) + 75.68
= 32. 75 + 75. 68
= (32+68) .75
= 100 .75
= 7500
1. \(x-8+32=68\)
\(x-8=68-32\)
\(x-8=36\)
\(x=36+8\)
\(x=44\)
_____
2. \(x+8+32=68\)
\(x+8=68-32\)
\(x+8=36\)
\(x=36-8\)
\(x=28\)
_____
3. \(98-x+34=43\)
\(98-x=43-34\)
\(98-x=9\)
\(x=98-9\)
\(x=89\)
_____
4. \(98+x-34=43\)
\(98+x=43+34\)
\(98+x=77\)
\(x=77-98\)
\(x=-21\)
_____
5. \(x:5:4=800\)
\(x:5=800.4\)
\(x:5=3200\)
\(x=3200.5\)
\(x=16000\)
_____
6. \(18+x=384:8\)
\(18+x=48\)
\(x=48-18\)
\(x=30\)
_____
7. \(\left(84,6-2\times x\right):3,02=5,1\)
\(84,6-2.x=5,1.3,02\)
\(84,6-2.x=15,402\)
\(2.x=84,6-15,402\)
\(2.x=69,198\)
\(x=69,198:2\)
\(x=34,599\)
_____
8. \(x\times5=120:6\)
\(x.5=20\)
\(x=20:5\)
\(x=4\)
_____
9. \(\left(15\times24-x\right):0,25=100:0,25\)
\(\left(15.24-x\right):0,25=400\)
\(15.24-x=400.0,25\)
\(15.24-x=100\)
\(360-x=100\)
\(x=360-100\)
\(x=260\)
1,x-8+32=68
=>x-8=68-32=36
=>x=36+8=42
2,x+8+32=68
=>x+8=68-32=36
=>x=36-8=28
3,98-x+34=43
=>98-x=43-34=9
=>x=98-9=89
4,98+x-34=43
=>98+x=43+34=77
=>x=77-98=-21
5,x:5:4=800
=>x:20=800
=>x=800x20=16000
6,18+x=384:8=48
=>x=48-18=30
7,(84,6-2x):3,02=5,1
=>84,6-2x=5,1x3,02=15,402
=>2x=84,6-15,402=69,198
=>x=69,198:2=34,599
8,5x=120:6=20
=>x=20:5=4
9,(15x24-x):0,25=100:0,25=400
=>360-x=400x0,25=100
=>x=360-100=260.
32 . 75 + 68 . 84 + 65 . 32 + 68 . 56
= 32 . ( 75 + 65 ) + 68 . ( 84 + 56 )
= 32 . 140 + 68 . 140
= 140 . ( 32 + 68 )
= 140 . 100
= 14000
32 x 75 + 68 x 84 + 65 x 32 + 68 x 56
= ( 32 x 75 ) + ( 65 x 32 ) + ( 68 x 84 ) + ( 68 x 56 )
= 32 x ( 75 + 65 ) + 68 x ( 84 +56 )
= 32 x 140 + 68 x 140
= 140 x ( 32 + 68 )
= 140 x 100
= 14000