7a-8+5a=-140

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Solution for 7a-8+5a=-140 equation: 


a in (-oo:+oo)

7*a+5*a-8 = -140 // + 140

7*a+5*a-8+140 = 0

12*a+132 = 0 // - 132

12*a = -132 // : 12

a = -132/12

a = -11

a = -11

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