7a+9=-6a-121

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Solution for 7a+9=-6a-121 equation: 


a in (-oo:+oo)

7*a+9 = -6*a-121 // + -6*a-121

7*a-(-6*a)+9+121 = 0

7*a+6*a+9+121 = 0

13*a+130 = 0 // - 130

13*a = -130 // : 13

a = -130/13

a = -10

a = -10

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