" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
b. 15a + 7b - 5c + -11a - 12b + 13d = 15a - 11a +7b -12b -5c +13d = 4a -5b -5c +13d
=-6-10-3m-8m+4n+7n
=-16-11m+11n
b.(15a+7b-5c)+(-11a-12b+13d)
=15a+(-11a)+7b-12b-5c+23d
=3a-5b-5c+23d