The simplified expression for the total is given as x + 9 points
To determine the simplified expression, we have to know that algebraic expressions are expressions made up of variables, terms, constants, factors and coefficients
Then, we have that;
The earning is 2x + 4 points
The loss is x - 5 points
Subtract the loss from the earning, we have;
2x + 4 - ( x - 5)
expand the bracket
2x + 4 - x + 5
collect like terms
x + 9