-9+6a+7a=134

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Solution for -9+6a+7a=134 equation: 


a in (-oo:+oo)

6*a+7*a-9 = 134 // - 134

6*a+7*a-134-9 = 0

13*a-143 = 0 // + 143

13*a = 143 // : 13

a = 143/13

a = 11

a = 11

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