Question

What’s the variable in 2n-3=7

Answer 1

n

Explanation:

As n is an unknown value, it is the variable.

Answer 2

Variable = n

Answer:

n = 5

Explanation:

Variable is what we don't know

`2n-3=7`

`\mathrm{Add\:}3\mathrm{\:to\:both\:sides}`

`2n-3+3=7+3`

`\mathrm{Simplify}`

`2n=10`

`\mathrm{Divide\:both\:sides\:by\:}2\\`

`(2n)/(2)=(10)/(2)`

`\mathrm{Simplify}`

n = 5

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