71=-5(7n-1)-2(-5a+7)

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Solution for 71=-5(7n-1)-2(-5a+7) equation:


Simplifying
71 = -5(7n + -1) + -2(-5a + 7)

Reorder the terms:
71 = -5(-1 + 7n) + -2(-5a + 7)
71 = (-1 * -5 + 7n * -5) + -2(-5a + 7)
71 = (5 + -35n) + -2(-5a + 7)

Reorder the terms:
71 = 5 + -35n + -2(7 + -5a)
71 = 5 + -35n + (7 * -2 + -5a * -2)
71 = 5 + -35n + (-14 + 10a)

Reorder the terms:
71 = 5 + -14 + 10a + -35n

Combine like terms: 5 + -14 = -9
71 = -9 + 10a + -35n

Solving
71 = -9 + 10a + -35n

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
71 + -10a = -9 + 10a + -10a + -35n

Combine like terms: 10a + -10a = 0
71 + -10a = -9 + 0 + -35n
71 + -10a = -9 + -35n

Add '-71' to each side of the equation.
71 + -71 + -10a = -9 + -71 + -35n

Combine like terms: 71 + -71 = 0
0 + -10a = -9 + -71 + -35n
-10a = -9 + -71 + -35n

Combine like terms: -9 + -71 = -80
-10a = -80 + -35n

Divide each side by '-10'.
a = 8 + 3.5n

Simplifying
a = 8 + 3.5n

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