Answer:
see explanation
Step-by-step explanation:
Given the 2 equations
p + q = 109 → (1)
2p + 3q = 240 → (2)
Multiplying (1) by - 2 and adding to (2) will eliminate the term in p
- 2p - 2q = - 218 → (3)
Add (2) and (3) term by term
(2p - 2p) + (3q - 2q) = (240 - 218), that is
q = 22
Substitute q = 22 into (1)
p + 22 = 109 ( subtract 22 from both sides )
p = 87
Thus 87 people own 2 televisions and 22 own 3 televisions
