(145*х):29=7875:105
х=7875:105 * 29 : 145 =75 *29 : 145 =2175 :145 = 15
(х*253):11=2346:34
x * 253 : 11 = 69
x * 23 =69
x = 69/23 =3
x =3
х=7875:105 * 29 : 145 =75 *29 : 145 =2175 :145 = 15
(х*253):11=2346:34
x * 253 : 11 = 69
x * 23 =69
x = 69/23 =3
x =3
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