Verified Answer :

dalendrk

\(\dfrac{3x-2}{21}=\dfrac{50}{21+21}\\\\\dfrac{3x-2}{21}=\dfrac{50}{42}\ \ \ \ |cross\ multiply\\\\42(3x-2)=21\cdot50\\\\126x-84=1050\ \ \ |add\ 84\ to\ both\ sides\\\\126x = 1134\ \ \ \ |divide\ both\ sides\ by\ 126\\\\\boxed{x=9.0}\)

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