A student on the cross country team wishes to improve her performance in an upcoming race. She has taken an introductory science course and knows that oxidation of glucose produces ATP for muscle contraction. The student normally eats small amounts of glucose gel for energy during a long run, and she decides that the best course of action is to triple the amount of glucose gel she eats each time so that her muscles can have access to more glucose. Will this strategy work

No it will not work

Explanation:

More intake of glucose gel will lead to an increase in the glucose level of the blood but not an increase in the glucose enzyme hexokinase to breakdown more glucose, and this could have a negative impact on the student.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)