-1/2(7x-28)

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Solution for -1/2(7x-28) equation: 


x in (-oo:+oo)

(-1/2)*(7*x-28) = 0

-1/2*(7*x-28) = 0

( -1/2 )

-1/2 = 0

x belongs to the empty set

( 7*x-28 )

7*x-28 = 0 // + 28

7*x = 28 // : 7

x = 28/7

x = 4

x = 4

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