Отвечаю!
a) 1,2x +3,8-2,7x
(1,2+3,8-2,7)x
2,3x
б) 4,5y-2,3+1,6y
(4,5 - 2,3 +1,6)y
3,8y
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Отвечаю!
a) 1,2x +3,8-2,7x
(1,2+3,8-2,7)x
2,3x
б) 4,5y-2,3+1,6y
(4,5 - 2,3 +1,6)y
3,8y