1/7x-12=-9 - solution

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Solution for 1/7x-12=-9 equation:

x in (-oo:+oo)

(1/7)*x-12 = -9 // + 9

(1/7)*x-12+9 = 0

1/7*x-3 = 0 // + 3

1/7*x = 3 // : 1/7

x = 3/1/7

x = 21

x = 21

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