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Mathematics
Leonidas Shelton
27 July, 03:30
If p + q = 36, and p - q = 20, then q = ?
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1
)
Jonathan Mcmahon
27 July, 03:44
0
q = 8
Step-by-step explanation:
Given the 2 equations
p + q = 36 → (1)
p - q = 20 → (2)
Add the 2 equations term by term
2p = 56 (divide both sides by 2)
p = 28
Substitute p = 28 into (1)
28 + q = 36 (subtract 28 from both sides)
q = 8
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