4(x-3)=х+6
4х-12=х+6
3х=18
х=6
4-6(х+2)=3-5х
4-6х-12=3-5х
-6х+5х=3-4+12
-х=11
х=-11
(5х+8)-(8х+14)=9
5х+8-8х-14=9
-3х=9-8+14
-3х=15
х=-5
2,7+3у=9(у-2,1)
2,7+3у=9у-18,9
3у-9у=-18,9-2,7
-6у=-21,6
у=3,6
0,3(8-3у)=3,2-0,8(у-7)
2,4-0,9у=3,2-0,8у+5,6
-0,9у+0,8у=3,2+5,6-2,4
-0,1у=6,4
у=-64
5/6(1/3х - 1/5)=3х+3 1/3
5/18х-1/6=3х+10/3
5/18х-3х=10/3+1/6
-49/18х=7/2
х=-9/7
х=-1 2/7
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Answers & Comments
4(x-3)=х+6
4х-12=х+6
3х=18
х=6
4-6(х+2)=3-5х
4-6х-12=3-5х
-6х+5х=3-4+12
-х=11
х=-11
(5х+8)-(8х+14)=9
5х+8-8х-14=9
-3х=9-8+14
-3х=15
х=-5
2,7+3у=9(у-2,1)
2,7+3у=9у-18,9
3у-9у=-18,9-2,7
-6у=-21,6
у=3,6
0,3(8-3у)=3,2-0,8(у-7)
2,4-0,9у=3,2-0,8у+5,6
-0,9у+0,8у=3,2+5,6-2,4
-0,1у=6,4
у=-64
5/6(1/3х - 1/5)=3х+3 1/3
5/18х-1/6=3х+10/3
5/18х-3х=10/3+1/6
-49/18х=7/2
х=-9/7
х=-1 2/7