(7x+13)/(6x+7)=20

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Solution for (7x+13)/(6x+7)=20 equation: 


D( x )

6*x+7 = 0

6*x+7 = 0

6*x+7 = 0

6*x+7 = 0 // - 7

6*x = -7 // : 6

x = -7/6

x in (-oo:-7/6) U (-7/6:+oo)

(7*x+13)/(6*x+7) = 20 // - 20

(7*x+13)/(6*x+7)-20 = 0

(7*x+13)/(6*x+7)+(-20*(6*x+7))/(6*x+7) = 0

7*x-20*(6*x+7)+13 = 0

-113*x-127 = 0

(-113*x-127)/(6*x+7) = 0

(-113*x-127)/(6*x+7) = 0 // * 6*x+7

-113*x-127 = 0

-113*x-127 = 0 // + 127

-113*x = 127 // : -113

x = 127/(-113)

x = -127/113

x = -127/113

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