(m+4m)/2=30

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Solution for (m+4m)/2=30 equation: 


m in (-oo:+oo)

(m+4*m)/2 = 30 // - 30

(m+4*m)/2-30 = 0

(5*m)/2-30 = 0

(5*m)/2+(-30*2)/2 = 0

5*m-30*2 = 0

5*m-60 = 0

(5*m-60)/2 = 0

(5*m-60)/2 = 0 // * 2

5*m-60 = 0

5*m-60 = 0 // + 60

5*m = 60 // : 5

m = 60/5

m = 12

m = 12

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