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97=7-9(9v)
We move all terms to the left:
97-(7-9(9v))=0
We add all the numbers together, and all the variables
-(-99v+7)+97=0
We get rid of parentheses
99v-7+97=0
We add all the numbers together, and all the variables
99v+90=0
We move all terms containing v to the left, all other terms to the right
99v=-90
v=-90/99
v=-10/11
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