You can substitute the value of y(5/6 x + 1) from the first equation for y in the second and get

which becomes

and you get
Answer:
Ellie's age is 41, Edna's age is 40, Elsa's age is 42
Step-by-step explanation:
Let Ellie's age be x. Because they're consecutive integers, Edna's age is x-1 and Elsa's age is x+1. Therefore, 3x=123, x=41, so Ellie's age is 41, Edna's age is 40, Elsa's age is 42
What does a equal to in the anwser
Answer:
72
Step-by-step explanation:
A=a+b/2*hA=12
A=12*12/2
Hoped this helped! :)
Plz mark Brainliest!
Have a nice day!
72