x*56-1234=2294. 50*x+3407=60757. (y+819)*72=86832. z*2-27*54=2856:21

X*56-1234=229456х=2294+123456х=3528х=3528/56х=6350*x+3407=6075750х=60757-340750х=57350х=57350/50х=1147(y+819)*72=86832у+819=86832/72у+819=1206у=1206-819у=387z*2-27*54=2856:212z - 1458=1362z=136+14582z=1594z=1594/2z=797