Question

Look at these equations

a=b+12 b=c+4
write an equation to show the relationship between a + c

Answer 1

a+b= 8 becomes a=8-b

b+c=10 becomes b=10-c

c+a=12 becomes c=12-a

....good luck soldier....

Answer 2

a= c+4+12
a= c+16
a+c= c+16+c+16-16= 2c+16