Answer :
So we have the equation:
[tex] \frac{1}{4} (4x+15)=24 [/tex]
So we first must multiply both sides by 4 in order to get rid of the [tex] \frac{1}{4} [/tex] on the left side:
[tex] (4x+15)=96 [/tex]
Then we need to subtract 15 on both sides in order to get the x term by itself on the left side:
[tex] 4x=81 [/tex]
And then to completely solve for x, we need to divide both sides by 4:
[tex] x=20.25 [/tex]