Final answer:
To write the sentence as an equation, use 'x' as the variable and write v + 181 = 21.
Step-by-step explanation:
To write the sentence as an equation, we need to represent the unknown variable as a symbol. Let's use 'x' as the variable. The sentence 'v plus 181 is the same as 21' can be written as:
v + 181 = 21
Now we have an equation where 'v' represents an unknown value that we can solve for.
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