a(n)=7+(7-1)(4)

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Solution for a(n)=7+(7-1)(4) equation: 


Simplifying
a(n) = 7 + (7 + -1)(4)

Multiply a * n
an = 7 + (7 + -1)(4)

Combine like terms: 7 + -1 = 6
an = 7 + (6)(4)

Multiply 6 * 4
an = 7 + 24

Combine like terms: 7 + 24 = 31
an = 31

Solving
an = 31

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by 'n'.
a = 31n-1

Simplifying
a = 31n-1

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