-1/2a+4=18/5

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Solution for -1/2a+4=18/5 equation: 


a in (-oo:+oo)

(-1/2)*a+4 = 18/5 // - 18/5

(-1/2)*a-(18/5)+4 = 0

(-1/2)*a-18/5+4 = 0

2/5-1/2*a = 0 // - 2/5

-1/2*a = -2/5 // : -1/2

a = -2/5/(-1/2)

a = 4/5

a = 4/5

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