Let's assign the following variables....
B=Bowden Stadium
M=Marshfield Stadium
And write the following equations from
the problem statement....
M=B+5067.......Eq1, given
M+B=210,355......Eq2, given
Substitute Eq1 into Eq2...
M+B=210,355...Eq2
(B+5067)+B=210,355...substitute for "M"
2B+5067=210,355...simplify
2B=205,288....subtract 5067, both sides
∴ B=102,644....divide both sides by 2
Substitute the value for "B" into Eq2...
M=B+5067....Eq1, given
M+102,355=210,355...substitute for "B"
∴ M=107,711...subtract 102,355,
both sides
Now let's check by substituting both calculated values into Eq1 and Eq2 and simplifying...
M=B+5067.....................Eq1
107,711=102,644+5067........substitute for "M, B"
107,711=107,711...................true, √check
M+B=210,355......Eq2
107,711+102,644=210,355...substitute for "M, B"
210,355=210,355.....true, √check
Our calculated values are correct. So the capacities of each stadium are...
Bowden Stadium........102,644 fans
Marshfield Stadium...107,711 fans
Always check your solutions and work!