Answer:
v - 18
Explanation:
( 7v - 9 ) - ( 6v + 9 )
= 7v - 9 - 6v - 9
= 7v - 6v - 9 - 9
= v - 18
(7v-9)-(6v+9)
Distribute the minus sign
7v-9-6v-9
Combine like terms
7v -6v -9-9
v -18
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