Answer:
71
Step-by-step explanation:
Let's show how this looks at first below. You can walk through my steps to see what new things I do each time.
[tex]13(-3)+40+7(4)-10(-3)+3(4)[/tex]
[tex]-39 + 40 + 28 -(-30)+12[/tex]
[tex]-39 + 40 + 28 + 30 + 12[/tex]
[tex]1+28+30+12[/tex]
[tex]29+30+12[/tex]
[tex]59+12[/tex]
[tex]71[/tex]
Hopefully that all makes sense! I first replaced x with -3 and y with -4 in the expression, then multiplied, then simplified by adding or subtracting when needed. If you have any further questions, let me know.
