Can someone me with these step by step?
4p+2p=3p-7
3n-5=7n+11
-3c-12=-5c+c
7 (6-2a)=5 (-3a+1)
2r-(5-r)=13+2r
2 (a-4)=4a-(2a+4)
5y+2=1/2 (10y+4)
-6a+3=-3 (2a-1)

Find the least common denominator for thesetvo rational expressions. n^2/n^2+4n+4 -3/n^2+7n+10

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Which of these would have been most likely to have been a carpetbagger during the reconstruction era? a) a new york businessman who relocated to mississippi b) a former slave who was able to buy land in birmingham c) a carolina-born politician who supported the democratic d) a former confederate officer who owned a farm in memphis eliminate