7=0.2x+5/2

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Solution for 7=0.2x+5/2 equation: 


x in (-oo:+oo)

7 = 0.2*x+5/2 // - 0.2*x+5/2

7-(0.2*x)-(5/2) = 0

7-0.2*x-5/2 = 0

9/2-0.2*x = 0 // - 9/2

-0.2*x = -9/2 // : -0.2

x = -9/2/(-0.2)

x = 22.5

x = 22.5

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