Question

8- 2 (2p-6) = 52-2 ( 1 + 7n ) -5n = -78

Answer 1

usLet u s fully expand the first equation

8 - 4p + 12 =52

simpliying gives

20-4p=52

subtracting 20 from both sides gives

-4p = 32

and finally, dividing both sides by -4 gives

p = 8

For the second equation, expanding LHS gives

-2 - 14