24(4x-16)=288 what is x?

$$\begin{array}{rll} 24(4x-16)&=&288\\\\ \frac{24(4x-16)}{24}&=&\frac{288}{24}\\\\ 4x-16&=&12\\\\ 4x-16+16&=&12+16\\\\ 4x&=&28\\\\ 4x/4&=&28/4\\\\ x&=&7\\\\ \end{array}$$

First....divide both sides by 24...this gives us

4x - 16 = 12  add 16 to both sides

4x = 28   divide both sides by 4

x = 7