Answer:
1.
2(n+2) = 5n - 5
2n+4=5n-5
5n-2n=5+4
3n=9
n=3
2.
15q = 3(2q - 1)
15q=6q-3
15q-6q=-3
-9q=-3
q=3/9
q=1/3
3.
-6y + 16 = 3(2y + 3)
-6y+16=6y+9
-12y=-16+9
-12y=-7
y=7/12
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