A system does $1\mathrm{.}85{10}^{8}J$ of work while $7\mathrm{.}5{10}^{8}J$ of heat is transferred from the system to the environment.

What is the change in the internal energy, in joules, of the system assuming there are no other changes $($such as in temperature or by the addition of fuel$)?$

$U=$

$$

Grade Summa

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