7(1+9n)-7(n-7)=-2n+2n

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Solution for 7(1+9n)-7(n-7)=-2n+2n equation:


Simplifying
7(1 + 9n) + -7(n + -7) = -2n + 2n
(1 * 7 + 9n * 7) + -7(n + -7) = -2n + 2n
(7 + 63n) + -7(n + -7) = -2n + 2n

Reorder the terms:
7 + 63n + -7(-7 + n) = -2n + 2n
7 + 63n + (-7 * -7 + n * -7) = -2n + 2n
7 + 63n + (49 + -7n) = -2n + 2n

Reorder the terms:
7 + 49 + 63n + -7n = -2n + 2n

Combine like terms: 7 + 49 = 56
56 + 63n + -7n = -2n + 2n

Combine like terms: 63n + -7n = 56n
56 + 56n = -2n + 2n

Combine like terms: -2n + 2n = 0
56 + 56n = 0

Solving
56 + 56n = 0

Solving for variable 'n'.

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

Add '-56' to each side of the equation.
56 + -56 + 56n = 0 + -56

Combine like terms: 56 + -56 = 0
0 + 56n = 0 + -56
56n = 0 + -56

Combine like terms: 0 + -56 = -56
56n = -56

Divide each side by '56'.
n = -1

Simplifying
n = -1

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