Question 149389
j=1/2(c+12)
c=c

j+c=90
1/2(c+12)+c=90


1/2c+6+c=90
3/2c+6=90


3/2c=84
c=55.99

j=90-c
j=90-55.99
j=34.01


j=34.01
j's compliment=55.99


------------------------------------OR----------------------------------------
j=(1/2c)+12
c=c


j+c=90
1/2c+12+c=90


3/2c+12=90
3/2c=78
c=52


j=38
j's compliment=52