-7/8x=-7/21

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Solution for -7/8x=-7/21 equation: 


x in (-oo:+oo)

(-7/8)*x = -7/21 // + -7/21

(-7/8)*x-(-7/21) = 0

(-7/8)*x+1/3 = 0

1/3-7/8*x = 0 // - 1/3

-7/8*x = -1/3 // : -7/8

x = -1/3/(-7/8)

x = 8/21

x = 8/21

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