Упростите выражение: 13b+19b44b-37d34n+n127q-q36y-19y+23y49a+21a+30

13ь+19ь=32ь 44ь-37d 34n+n=35n 127q-q=126q 36у-19у+23у=40у 49а+21а+30=70а+30

13b+19b (13+19)b 32b 44b-37b (44-37)b 7b 34n+n 34n+1n (34+1)n 35n 127q-q 127g-1g (127-1)g 126g 36y-19y+23y (36-19+23)y 40y 49a+21a+30 70a+30 10 (7a+3)