2*(3х+х)=32
6х+2х=32
8х=32
х=32:8
х=4 (ширина)
4*3=12 (длина)
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2*(3х+х)=32
6х+2х=32
8х=32
х=32:8
х=4 (ширина)
4*3=12 (длина)