12+x/3=7 - solution

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Solution for 12+x/3=7 equation:

x in (-oo:+oo)

x/3+12 = 7 // - 7

x/3-7+12 = 0

1/3*x+5 = 0 // - 5

1/3*x = -5 // : 1/3

x = -5/1/3

x = -15

x = -15

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