Tina received 2000 fewer votes than Michael in an election. Samantha received 4200 more votes than Michael in the election. Write the expression for the number of votes received by Samantha plus the number of votes received by Michael minus the number of votes received by Tina.

Define variables being used:
T=M-2000
S=M+4200

Write the expression:
4200+(m-2000)

Simplify
2200 - M

I keep misreading these word problems, any help would be appreciated.

number of votes for Michael --- M

number of votes for Tina = M - 200
number of votes for Sam = M + 4200
(you had that, good!)

Now, just translate:
"Samantha plus the number of votes received by Michael minus the number of votes received by Tina
(M + 4200) + M - (M-200)
= M+4200+M-M+200
= M + 4400