5*(c-8x)=75 при:c=53

Question

5*(c-8x)=75 при:c=53

Answer 1

5с - 40х = 75
375 - 40х = 75
40х = 300
х=7,5

Answer 2

5с - 40х = 75
375 - 40х = 75
40х = 300
х=7,5