3x/4=21

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Solution for 3x/4=21 equation: 


x in (-oo:+oo)

(3*x)/4 = 21 // - 21

(3*x)/4-21 = 0

3/4*x-21 = 0 // + 21

3/4*x = 21 // : 3/4

x = 21/3/4

x = 28

x = 28

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