При х=3:6х+19х+26х = 51х,53(х+5)+7х = 53(3+5)+73 = 538+21 = 424+21 = 445,47х+21х+32х = 100х,46х+4*(2х+7) = 46х+8х+28 = 54х.
При х=3:
6х+19х+26х = 51х,
53(х+5)+7х = 53(3+5)+73 = 538+21 = 424+21 = 445,
47х+21х+32х = 100х,
46х+4*(2х+7) = 46х+8х+28 = 54х.