Question

Emma's sister is nine years older than Emma. Their combined ages add up to 49.How old is Emma. write and equation and solve

Answer 1

E= Emma's age
emma's sister's age= e+9 (emma's age plus 9)

e+9=49
(isolate your variable) 
e+9-9=49-9
e=40
Emma is 40 years old
To check: Emma's sister is 9 years older right? take emmas age 40 plus the nine more years and you still get the total of 49! hope that helps good luck

Answer 2

Answer:

E= Emma's age

emma's sister's age= e+9 (emma's age plus 9)

e+9=49

(isolate your variable)  

e+9-9=49-9

e=40

Emma is 40 years old

To check: Emma's sister is 9 years older right? take emmas age 40 plus the nine more years and you still get the total of 49! hope that helps good luck

hehe