-42=-7/2x

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Solution for -42=-7/2x equation: 


x in (-oo:+oo)

-42 = (-7/2)*x // - (-7/2)*x

-((-7/2)*x)-42 = 0

(7/2)*x-42 = 0

7/2*x-42 = 0 // + 42

7/2*x = 42 // : 7/2

x = 42/7/2

x = 12

x = 12

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