Rewrite a. an = 19 - 7(n-1)
1 answer:
Solution for an=19-7(n-1) equation:
Simplifying
an = 19 + -7(n + -1)
Reorder the terms:
an = 19 + -7(-1 + n)
an = 19 + (-1 * -7 + n * -7)
an = 19 + (7 + -7n)
Combine like terms: 19 + 7 = 26
an = 26 + -7n
Solving
an = 26 + -7n
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Divide each side by 'n'.
a = 26n-1 + -7
Simplifying
a = 26n-1 + -7
Reorder the terms:
a = -7 + 26n-1
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