(х - 50,6) +2,15 = 42,9
х - 50,6 = 42,90 - 2,15
х - 50,6 = 40,75
х = 40,75 + 50,6 = 40,75 + 50,60
х = 91,35
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(91,35 - 50,6 ) + 2,15 = 42,9
40,75 + 2,15 = 42,9
42,90 = 42,9
42,9 = 42,9
31,28 -(m +4,2) =15,093
31,28 - m - 4,20 = 15,093
27,08 - m = 15,093
m = 27,08 - 15,093 = 27,080 - 15,093
m = 11,987
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31,28 - (11,987 + 4,2) = 15,093
31,280 - 16,187 = 15,093
15,093 = 15,093