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\left(\frac{1}{8}x-\frac{1}{4}\right)\left(x-3\right)-\frac{15}{4}=\frac{1}{4}\left(x^{2}-6x-\frac{1}{2}x\left(x+1\right)\right)-1
Use the distributive property to multiply \frac{1}{8} by x-2.
\frac{1}{8}x^{2}-\frac{5}{8}x+\frac{3}{4}-\frac{15}{4}=\frac{1}{4}\left(x^{2}-6x-\frac{1}{2}x\left(x+1\right)\right)-1
Use the distributive property to multiply \frac{1}{8}x-\frac{1}{4} by x-3 and combine like terms.
\frac{1}{8}x^{2}-\frac{5}{8}x-3=\frac{1}{4}\left(x^{2}-6x-\frac{1}{2}x\left(x+1\right)\right)-1
Subtract \frac{15}{4} from \frac{3}{4} to get -3.
\frac{1}{8}x^{2}-\frac{5}{8}x-3-\frac{1}{4}\left(x^{2}-6x-\frac{1}{2}x\left(x+1\right)\right)=-1
Subtract \frac{1}{4}\left(x^{2}-6x-\frac{1}{2}x\left(x+1\right)\right) from both sides.
\frac{1}{8}x^{2}-\frac{5}{8}x-3-\frac{1}{4}\left(x^{2}-6x-\frac{1}{2}x^{2}-\frac{1}{2}x\right)=-1
Use the distributive property to multiply -\frac{1}{2}x by x+1.
\frac{1}{8}x^{2}-\frac{5}{8}x-3-\frac{1}{4}\left(\frac{1}{2}x^{2}-6x-\frac{1}{2}x\right)=-1
Combine x^{2} and -\frac{1}{2}x^{2} to get \frac{1}{2}x^{2}.
\frac{1}{8}x^{2}-\frac{5}{8}x-3-\frac{1}{4}\left(\frac{1}{2}x^{2}-\frac{13}{2}x\right)=-1
Combine -6x and -\frac{1}{2}x to get -\frac{13}{2}x.
\frac{1}{8}x^{2}-\frac{5}{8}x-3-\frac{1}{8}x^{2}+\frac{13}{8}x=-1
Use the distributive property to multiply -\frac{1}{4} by \frac{1}{2}x^{2}-\frac{13}{2}x.
-\frac{5}{8}x-3+\frac{13}{8}x=-1
Combine \frac{1}{8}x^{2} and -\frac{1}{8}x^{2} to get 0.
x-3=-1
Combine -\frac{5}{8}x and \frac{13}{8}x to get x.
x=-1+3
Add 3 to both sides.
x=2
Add -1 and 3 to get 2.