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12 = a (-6 + 5) (-6 - 6)

Sagot :

Answer:

a=1

Step-by-step explanation:

12 = a (-6 + 5) (-6 -6)
12 = a ( -1) (-12)
12 = a * 1 * 12
12 = 12a
divide 12a with 12
a = 1