x/3+y/4=4, 5x/6-y/8=4.by method of elimination
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Answer:
x = 6 and y = 8
Step-by-step explanation:
x/3 + y/4 = 4
(4x + 3y)/12 = 4
4x + 3y = 4 × 12
4x + 3y = 48 --------(1)
5x/6 - y/8 = 4
(20x - 3y)/24 = 4
20x - 3y = 24 × 4
20x - 3y = 96 -------(2)
on adding eq 1 and 2
4x + 3y = 48
20x - 3y = 96
24x = 144
x = 144/24
x = 6
put x = 6 in eq 1
4x + 3y = 48
4(6) + 3y = 48
24 + 3y = 48
3y = 48 - 24
3y = 24
y = 24/3
y = 8
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