Answer:
12
Step-by-step explanation:
I think that’s what u saying
For this case, the first thing we must do is define variables.
We have then:
x: Maggie's age
y: Age of Maggie's brother
We write the system of equations that models the problem.
We have then:

We solve the system of equations.
For this, we use substitution:

From here, we clear the value of x:


Answer:
Maggie is 9 years old
Answer:
Commutative
Step-by-step explanation:
2 + 4 = 4 + 2 as an example
Answer:
frdg
Step-by-step explanation:
Answer:

Step-by-step explanation:


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hope it helps....
have a great day!!