-7/4x=-21 - solution

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Solution for -7/4x=-21 equation:

x in (-oo:+oo)

(-7/4)*x = -21 // + 21

(-7/4)*x+21 = 0

21-7/4*x = 0 // - 21

-7/4*x = -21 // : -7/4

x = -21/(-7/4)

x = 12

x = 12

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