y-(-9)=4/5(x-7)

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Solution for y-(-9)=4/5(x-7) equation:


x in (-oo:+oo)

y+9 = (4/5)*(x-7) // - (4/5)*(x-7)

y-((4/5)*(x-7))+9 = 0

(-4/5)*(x-7)+y+9 = 0

y-4/5*(x-7)+9 = 0

y-4/5*(x-7)+9 = 0

y-4/5*x+28/5+9 = 0

y-4/5*x+73/5 = 0

y-4/5*x+73/5 = 0

y-4/5*x+73/5 = 0 // - y+73/5

-4/5*x = -(y+73/5) // : -4/5

x = (-(y+73/5))/(-4/5)

x = 5/4*(y+73/5)

x = 5/4*(y+73/5)

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