y-5=-21/4(x-10)

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Solution for y-5=-21/4(x-10) equation: 


x in (-oo:+oo)

y-5 = (-21/4)*(x-10) // - (-21/4)*(x-10)

y-((-21/4)*(x-10))-5 = 0

(21/4)*(x-10)+y-5 = 0

21/4*(x-10)+y-5 = 0

21/4*(x-10)+y-5 = 0

21/4*x+y-105/2-5 = 0

21/4*x+y-115/2 = 0

21/4*x+y-115/2 = 0

21/4*x+y-115/2 = 0 // - y-115/2

21/4*x = -(y-115/2) // : 21/4

x = (-(y-115/2))/21/4

x = 4/21*(115/2-y)

x = 4/21*(115/2-y)

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