Discover new knowledge and insights with IDNLearn.com's extensive Q&A platform. Discover thorough and trustworthy answers from our community of knowledgeable professionals, tailored to meet your specific needs.
You have to replace the number in the variable:
A.
[tex]a+4[/tex][tex]-9+4[/tex][tex]=-5[/tex]B.
[tex]-a+4[/tex][tex]-(-9)+4[/tex][tex]9+4[/tex][tex]=13[/tex]