1) 6х+10=4+12
6х=16-10
6х=6
х=1
2) 7х+25=10х+6
-3х=-19
х=19/3
3)0,4(6у-7)=0,5(3у+7)
2,4у-2,8=1,5у+3,5
0.9у=6.3
у=7
4) 0,2(5х-2)=0,3(2х-1)-0,9
х-0.4=0.6х-0.3-0.9
0.4х=-1,2+0,4
х=-0.8:0,4
х=-2 5) 1-5(1,5+х)=6-7,5х
1-7.5х-5х=6-7.5х
-5х=6-1
-5х=5
х=-1
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Verified answer
1) 6х+10=4+12
6х=16-10
6х=6
х=1
2) 7х+25=10х+6
-3х=-19
х=19/3
3)0,4(6у-7)=0,5(3у+7)
2,4у-2,8=1,5у+3,5
0.9у=6.3
у=7
4) 0,2(5х-2)=0,3(2х-1)-0,9
х-0.4=0.6х-0.3-0.9
0.4х=-1,2+0,4
х=-0.8:0,4
х=-2
5) 1-5(1,5+х)=6-7,5х
1-7.5х-5х=6-7.5х
-5х=6-1
-5х=5
х=-1