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Answer:
x^2+12x-13 = 0
Step-by-step explanation:
12x=13-x^2
=>12x+x^2=13-x^2+x^2
=>x^2+12x-13 = 13-13
=> x^2+12x-13 = 0
Step-by-step explanation:

Answer:
It is 140.
Step-by-step explanation:
65+77=142, and the answer closest to that is 140.
1/6 because the opposite of multiplying is dividing and dividing 6 is equal to multiplying it by the reciprocal, which is 1/6