3+1/2x-7x=71/2

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Solution for 3+1/2x-7x=71/2 equation: 


x in (-oo:+oo)

(1/2)*x-(7*x)+3 = 71/2 // - 71/2

(1/2)*x-(7*x)-(71/2)+3 = 0

(1/2)*x-7*x-71/2+3 = 0

-13/2*x-65/2 = 0 // + 65/2

-13/2*x = 65/2 // : -13/2

x = 65/2/(-13/2)

x = -5

x = -5

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