1)17x=-170+34
17X=-136
X=-8
2)7x-9x=-11-5
-2X=-16
X=8
3)5x-30=15x-120
5x-15x=-120+30
-10x=-90
X=9
4)5/6y-2/3y=-1/6+1
1/6y=5/6
y=5
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Answers & Comments
1)17x=-170+34
17X=-136
X=-8
2)7x-9x=-11-5
-2X=-16
X=8
3)5x-30=15x-120
5x-15x=-120+30
-10x=-90
X=9
4)5/6y-2/3y=-1/6+1
1/6y=5/6
y=5