x/2=-21/1 - solution

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Solution for x/2=-21/1 equation:

x in (-oo:+oo)

x/2 = -21/1 // + -21/1

x/2-(-21/1) = 0

x/2+21 = 0

1/2*x+21 = 0 // - 21

1/2*x = -21 // : 1/2

x = -21/1/2

x = -42

x = -42

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