an=7an-1+4

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Solution for an=7an-1+4 equation:


Simplifying
an = 7an + -1 + 4

Reorder the terms:
an = -1 + 4 + 7an

Combine like terms: -1 + 4 = 3
an = 3 + 7an

Solving
an = 3 + 7an

Solving for variable 'a'.

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

Add '-7an' to each side of the equation.
an + -7an = 3 + 7an + -7an

Combine like terms: an + -7an = -6an
-6an = 3 + 7an + -7an

Combine like terms: 7an + -7an = 0
-6an = 3 + 0
-6an = 3

Divide each side by '-6n'.
a = -0.5n-1

Simplifying
a = -0.5n-1

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