Answer:
(10, 5 )
Explanation:
- 4x + 11y = 15 → (1)
x = 2y → (2)
substitute x = 2y into (1)
- 4(2y) + 11y = 15
- 8y + 11y = 15
3y = 15 ( divide both sides by 3 )
y = 5
substitute y = 5 into (2)
x = 2y = 2 × 5 = 10
solution is (10, 5 )
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