Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Algebra Linear Equation in 2 Variable

​রৈখিক সমীকরণের নিয়ম 2x + 3y = 7 এবং 2ax + (a + b) y = 8 অসীম সংখ্যক সমাধান থাকলে।

1
​a = 2b
2
b = 2a
3
a + 2b = 0
4
2a + b=0
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