77a+22b-90a-=

Asked by jayakumar.narasimhan | 16th Oct, 2017, 10:14: AM

Expert Answer:

begin mathsize 16px style 77 straight a plus 22 straight b minus 90 straight a
equals 77 straight a minus 90 straight a plus 22 straight b
equals negative 13 straight a plus 22 straight b end style

Answered by Rashmi Khot | 15th Dec, 2017, 11:13: AM