Posted by Kathy on .
Could you please help me with this exercise? Thanks.
Adding and substracting vectors
Solve for the unknown variables:
(a) (a, b) + (3, 0) = (6, 7)
(b) (11, c) + (d, 5) = (12, −3)
(c) (5, 5) + (e, 4) = (2, f)
(d) (1, −3) − (5, g) = (h, 2)

Physics (vectors) 
Reiny,
I'll do one of them, they are all the same and very easy
b) (11,c) + (d,5) = (12,3)
(11+d , c+5 ) = (12,3
so 11+d = 12
d = 23
and c+5 = 3
c = 8