Solve the following equations and verify the answers.
$3 (2 x - 1) = 9 x + 27$

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Solution

$3 (2 x - 1) = 9 n x + 27 \to (i) 6 x - 3 = 9 x + 27 6 x - 9 x = + 27 + 3 - 3 x = - 30 x = - 10 V a r i f i c a t i o n, p u t t t h e v a l u e o f x i n e q u a t i o n (i) 3 (2 (- 10)) = 9 (- 10 + 27) 3 (- 20 - 1) = - 90 + 27 3 (- 21) = - 63 - 63 = - 63$

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