Answer:
V=5
Explanation:
-3(1-7v)=102
-3+21v=102
21v=102
v=5
-3(1-7v) = 102
÷ -3 ÷ -3
1-7v = -34
-1. -1
-7v = -35
÷-7. ÷-7
v = 5
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