যদি 3x -2y = 8 এবং 3x + 5y = 1 হয়, তাহলে x = কত?
Solution
Correct Answer: Option B
3x + 5y = 1
=> 5y=1-3x
y=(1-3x)/5
Again,
3x -2y = 8
=> 3x-2(1-3x)/5=8
=>15x-2+6x=40
=> 21x=42
x=2
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