Найдите корень уравнений
1)3(х-2)=4х
2)6(z-1)= 9
3)5(у+3)= 10
4)3(2х-7)=9
5)-4(х-2)= -6
6) 3(х-5) = х+3
1)3(х-2)=4х
2)6(z-1)= 9
3)5(у+3)= 10
4)3(2х-7)=9
5)-4(х-2)= -6
6) 3(х-5) = х+3
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Answers & Comments
3х-6=4х
3х-4х=6
-1х=6
х=6:(-1)
х= -6
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6(z-1)=9
6z-6=9
6z=6+9
6z=15
z=15:6
z=2,5
--------
5(y+3)=10
5y+15=10
5y=10-15
5y=-5
y= -5:5
y= -1
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3(2х-7)=9
6х-21=9
6х=9+21
6х=30
х=30:6
х=5
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-4(х-2)= -6
-4х+8= -6
-4х= -6-8
-4х= -14
х= -14:(-4)
х=3,5
--------
3(х-5)=х+3
3х-15=х+3
3х-х=3+15
2х=18
х=18:2
х=9