a/2.1+8=4

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Solution for a/2.1+8=4 equation: 


a in (-oo:+oo)

a/2.1+8 = 4 // - 4

a/2.1-4+8 = 0

0.47619048*a+4 = 0 // - 4

0.47619048*a = -4 // : 0.47619048

a = -4/0.47619048

a = -8.39999993

a = -8.39999993

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