Hey there!
Let's write this as a system of equations.
m+b=31
b= 2m-11
Let's plug our value for b into the first equation and solve for m.
m+2m-11=31
Let's combine like terms.
3m-11=31
We add 11 to both sides.
3m=42
We divide both sides by 3.
m=14
Therefore, Maggie is 14 years old.
I hope this helps!
2x plus 11 equall 31 subtract 11 from 31 divide the answer by 2 and x equals 10
