Answer:
x= -7,-6,2,11,3
Step-by-step explanation:
Explanation is in the file
tinyurl.com/wpazsebu
1.solution
=2a+5a
=7a
2.solution
=12x-3x
=9x
3.solution
=3p+2p-p
=5p-p
=4p
Hope it helps you.