4x=21/2.5

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Solution for 4x=21/2.5 equation: 


x in (-oo:+oo)

4*x = 21/2.5 // - 21/2.5

4*x-(21/2.5) = 0

4*x-8.4 = 0

4*x-8.4 = 0 // + 8.4

4*x = 8.4 // : 4

x = 8.4/4

x = 2.1

x = 2.1

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