-21=-x/8+4

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Solution for -21=-x/8+4 equation: 


x in (-oo:+oo)

-21 = 4-x/8 // - 4-x/8

-(-x/8)-21-4 = 0

(1/8)*x-21-4 = 0

1/8*x-21-4 = 0 // + -21-4

1/8*x = -(-21-4) // : 1/8

x = (-(-21-4))/1/8

x = 8*(4+21)

x = 8*(4+21)

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