Answer:
-300
Step-by-step explanation:
<em><u>The first step is to distribute the -1 to (7 - 3), like so:</u></em>
-(7 - 3) (75)
-7 + 3(75)
<em><u>Add like terms (-7 and 3):</u></em>
-4(75)
-(4)(75)
