Sagot :
Answer:
A. Find the sum
- [tex]10x+6x=\boxed{\boldsymbol{16x}}[/tex]
- [tex](-5a)+(-7a)=\boxed{\boldsymbol{-5a-7a}}[/tex]
- [tex]5x-4+(-2x-8)=5x-4-2x-8=5x-2x-4-8=\boxed{\boldsymbol{3x-12}}[/tex]
B. Find the difference
- [tex]7x+4-(5x+2)=7x+4-5x-2=7x-5x+4-2=\boxed{\boldsymbol{2x+2}}[/tex]
- [tex]-8m+15-(-2m-11)=-8m+15+2m+11=-8m+2m+15+11=\boxed{\boldsymbol{-6m+26}}[/tex]
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