20z+5+12,5=16-1/2z

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Solution for 20z+5+12,5=16-1/2z equation: 


z in (-oo:+oo)

20*z+5+12.5 = 16-((1/2)*z) // - 16-((1/2)*z)

20*z+(1/2)*z-16+5+12.5 = 0

41/2*z+1.5 = 0 // - 1.5

41/2*z = -1.5 // : 41/2

z = -1.5/41/2

z = -0.07317073

z = -0.07317073

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