a/4-8=-1 - solution

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Solution for a/4-8=-1 equation:

a in (-oo:+oo)

a/4-8 = -1 // + 1

a/4-8+1 = 0

1/4*a-7 = 0 // + 7

1/4*a = 7 // : 1/4

a = 7/1/4

a = 28

a = 28

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