Question

find the X=-3(4x+9)=21​

Answer 1

$3(4x + 9) = 21 \\ 4x + 9 = 7 \\ 4x = ( - 2) \\ x = \frac{( - 1) }{2}$

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Answer 2

$x = - 3(4x + 9) = 21$

$x = - 12x + ( - 27) = 21$

$x = - 39 = 21$