If p - 2q = 14 and 3p + q = 11 then p = ______?
- 36/6
- 36/5
- 36/7
- None of these
Explanation
Given equations:
p - 2q = 14 ... (1)
3p + q = 11 ... (2)
Multiplying equation (2) by 2:
6p + 2q = 22 ... (3)
Adding equation (1) and equation (3):
(p - 2q) + (6p + 2q) = 14 + 22
7p = 36
p = 36/7
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