7(-5-7n)=-84

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Solution for 7(-5-7n)=-84 equation: 


n in (-oo:+oo)

7*(-(7*n)-5) = -84 // + 84

7*(-(7*n)-5)+84 = 0

7*(-7*n-5)+84 = 0

7*(-7*n-5)+84 = 0

49-49*n = 0

49-49*n = 0

49-49*n = 0 // - 49

-49*n = -49 // : -49

n = -49/(-49)

n = 1

n = 1

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