1. 6-2y= 8-3 y
y=2
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2. 15 x+3 = 10x -12
15 x -10x =-3-12
5x = -15
x= -3
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3 -5x - 11 = - 6x -12
-5x =6x =11-12
x=-1
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4/ 3x=5 =8x -15
3x-8x= -15-5
-5x=-20
x=4
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5/ 5x+15 =27=3x
5x-3x=27-15
2x=12
x=6
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6/ 3y+4-2y=6
y=2
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7/ 5y-13-y=y+14
5y-y-y=13+14
3y=27
y=9
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8/ 3x-12-2x-6=-2
4x=18-2
4x=16
x=4
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9/ 4y-3=14-2y=1
4y+2y=15+3
6y=18
y=3