z-4/5z1/4=2/5(z-7/8)

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Solution for z-4/5z1/4=2/5(z-7/8) equation: 


z in (-oo:+oo)

z-(((4/5)*z^1)/4) = (2/5)*(z-(7/8)) // - (2/5)*(z-(7/8))

z-((2/5)*(z-(7/8)))-(((4/5)*z^1)/4) = 0

(-2/5)*(z-7/8)+z+(-1/5)*z = 0

z-2/5*(z-7/8)-z/5 = 0

(-2/5*5*(z-7/8))/5+(5*z)/5-z/5 = 0

5*z-2/5*5*(z-7/8)-z = 0

3*z-z+7/4 = 0

2*z+7/4 = 0

(2*z+7/4)/5 = 0

(2*z+7/4)/5 = 0 // * 5

2*z+7/4 = 0

2*z+7/4 = 0 // - 7/4

2*z = -7/4 // : 2

z = -7/4/2

z = -7/8

z = -7/8

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