How do you solve this equation for x?

How do you solve this equation for x?

(1/2)(x + 18) = 4(2x − 6) − 9x

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(1/2)(x + 18) = 4(2x − 6) − 9x
(1/2)(x + 18) = 8x - 24 - 9x   {used the distributive property on the right side}
(1/2)(x + 18) = -x - 24   {combined like terms on the right side}
x + 18 = -2x - 48   {multiplied the entire equation by 2 to eliminate the fraction}
3x = -66   {added 2x and subtracted 18 from each side}
x = -22   {divided each side by 3}

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