3(1d+10)=42

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Solution for 3(1d+10)=42 equation: 


d in (-oo:+oo)

3*(1*d+10) = 42 // - 42

3*(1*d+10)-42 = 0

3*(d+10)-42 = 0

3*(d+10)-42 = 0

3*d-12 = 0

3*d-12 = 0

3*d-12 = 0 // + 12

3*d = 12 // : 3

d = 12/3

d = 4

d = 4

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