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CUET
General Test
Quantitative Reasoning
Algebra
If $9a^2 + 4b^2 + 49c^2 + 18 = 2(2b + 28c - 3a)$, then the value of (a + 2b - c) will be :
$\frac{11}{21}$
$\frac{2}{21}$
$\frac{26}{21}$
$\frac{5}{21}$