12x/20=21z/28

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Solution for 12x/20=21z/28 equation: 


x in (-oo:+oo)

(12*x)/20 = (21*z)/28 // - (21*z)/28

(12*x)/20-((21*z)/28) = 0

(12*x)/20+(-3/4)*z = 0

3/5*x-3/4*z = 0 // + -3/4*z

3/5*x = -(-3/4*z) // : 3/5

x = (-(-3/4*z))/3/5

x = 5/4*z

x = 5/4*z

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