-12+x/4=9

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Solution for -12+x/4=9 equation: 


x in (-oo:+oo)

x/4-12 = 9 // - 9

x/4-12-9 = 0

1/4*x-21 = 0 // + 21

1/4*x = 21 // : 1/4

x = 21/1/4

x = 84

x = 84

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