Need more info about the 3 younger siblings
4-4=0
16-6-10=0
17-3-4-10=0
1-2+1=0
Hope that helps!
<span>7-4x+2(5x+8)
plug x=-2
7
-4(-2)+2(5(-2)+8)
7+8+2(-10+8)
7+8+2(-2)
7+8-4
11</span>
Ok I did, do you need me to tell you the answers for the missing ones? Let me know, I can just do it in the calculator haha