Question

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

Answer 1

X*56-1234=2294
56х=2294+1234
56х=3528
х=3528/56
х=63

50*x+3407=60757
50х=60757-3407
50х=57350
х=57350/50
х=1147

(y+819)*72=86832
у+819=86832/72
у+819=1206
у=1206-819
у=387

z*2-27*54=2856:21
2z - 1458=136
2z=136+1458
2z=1594
z=1594/2
z=797