Step-by-step explanation:
a + b = 90
a + c = 180
a) If a = x, the. we can write
x + b = 90 and x + c = 180
or
b = 90 - x
c = 180 - x
b) c - b = (180 - x) - (90 - x)
= 180 - x - 90 + x
= 90
Answer: It is simple. USE YOUR BRAIN AND STOP COMING HERE TO CHEAT ON YOUR HOME WORK
Step-by-step explanation:1: GET SOME HELP
2: ASK QUESTIONS IN CLASS
3: DON'T MESS AROUND AND BE A CLOWN
4: AND THATS ON PERIOD