-8+7n=-15 - solution

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Solution for -8+7n=-15 equation:

n in (-oo:+oo)

7*n-8 = -15 // + 15

7*n-8+15 = 0

7*n+7 = 0 // - 7

7*n = -7 // : 7

n = -7/7

n = -1

n = -1

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