60=a+(n-1)7

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Solution for 60=a+(n-1)7 equation:


Simplifying
60 = a + (n + -1) * 7

Reorder the terms:
60 = a + (-1 + n) * 7

Reorder the terms for easier multiplication:
60 = a + 7(-1 + n)
60 = a + (-1 * 7 + n * 7)
60 = a + (-7 + 7n)

Reorder the terms:
60 = -7 + a + 7n

Solving
60 = -7 + a + 7n

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
60 + -1a = -7 + a + -1a + 7n

Combine like terms: a + -1a = 0
60 + -1a = -7 + 0 + 7n
60 + -1a = -7 + 7n

Add '-60' to each side of the equation.
60 + -60 + -1a = -7 + -60 + 7n

Combine like terms: 60 + -60 = 0
0 + -1a = -7 + -60 + 7n
-1a = -7 + -60 + 7n

Combine like terms: -7 + -60 = -67
-1a = -67 + 7n

Divide each side by '-1'.
a = 67 + -7n

Simplifying
a = 67 + -7n

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