2/7=4x/42

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Solution for 2/7=4x/42 equation: 


x in (-oo:+oo)

2/7 = (4*x)/42 // - (4*x)/42

2/7-((4*x)/42) = 0

(-2/21)*x+2/7 = 0

2/7-2/21*x = 0 // - 2/7

-2/21*x = -2/7 // : -2/21

x = -2/7/(-2/21)

x = 3

x = 3

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