n/4-12=20 - solution

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Solution for n/4-12=20 equation:

n in (-oo:+oo)

n/4-12 = 20 // - 20

n/4-20-12 = 0

1/4*n-32 = 0 // + 32

1/4*n = 32 // : 1/4

n = 32/1/4

n = 128

n = 128

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