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4*(19*z-(75/18))+x-(5*z) = 0
4*(19*z-25/6)+x-5*z = 0
4*(19*z-25/6)+x-5*z = 0
x+76*z-5*z-50/3 = 0
x+71*z-50/3 = 0
x+71*z-50/3 = 0
x+71*z-50/3 = 0 // - 71*z-50/3
x = -(71*z-50/3)
x = 50/3-(71*z)
x = 50/3-(71*z)
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