1-4a=-19

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Solution for 1-4a=-19 equation: 


a in (-oo:+oo)

1-(4*a) = -19 // + 19

1-(4*a)+19 = 0

1-4*a+19 = 0

20-4*a = 0 // - 20

-4*a = -20 // : -4

a = -20/(-4)

a = 5

a = 5

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