7.5+1/2x=3/4x

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Solution for 7.5+1/2x=3/4x equation: 


x in (-oo:+oo)

(1/2)*x+7.5 = (3/4)*x // - (3/4)*x

(1/2)*x-((3/4)*x)+7.5 = 0

(1/2)*x+(-3/4)*x+7.5 = 0

7.5-1/4*x = 0 // - 7.5

-1/4*x = -7.5 // : -1/4

x = -7.5/(-1/4)

x = 30

x = 30

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