0.4=x/7

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Solution for 0.4=x/7 equation: 


x in (-oo:+oo)

0.4 = x/7 // - x/7

0.4-(x/7) = 0

0.4-1/7*x = 0 // - 0.4

-1/7*x = -0.4 // : -1/7

x = -0.4/(-1/7)

x = 2.80000006

x = 2.80000006

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