Упростить выражения 13b+19b,44d-37d,34n+n,127g-g,36y-19y+23y,49a+21a+30
13b + 19b = 31b 44d - 37d = 7d 34n + n = 35n 127g - g =126g 36y -19y + 23y =40y 49a+21a+30 = 70a+30
(13+19)b=32b
(44-37)d=7в
35n
126g
(36-19+23)y=38y
(49+21)a+30=70a+30