3+12/(t-7)=0

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Solution for 3+12/(t-7)=0 equation: 


D( t )

t-7 = 0

t-7 = 0

t-7 = 0

t-7 = 0 // + 7

t = 7

t in (-oo:7) U (7:+oo)

12/(t-7)+3 = 0

12/(t-7)+(3*(t-7))/(t-7) = 0

3*(t-7)+12 = 0

3*t-9 = 0

(3*t-9)/(t-7) = 0

(3*t-9)/(t-7) = 0 // * t-7

3*t-9 = 0

3*t-9 = 0 // + 9

3*t = 9 // : 3

t = 9/3

t = 3

t = 3

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