Solve for x
x = \frac{11}{4} = 2\frac{3}{4} = 2.75
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8x-21=1
Square both sides of the equation.
8x-21-\left(-21\right)=1-\left(-21\right)
Add 21 to both sides of the equation.
8x=1-\left(-21\right)
Subtracting -21 from itself leaves 0.
8x=22
Subtract -21 from 1.
\frac{8x}{8}=\frac{22}{8}
Divide both sides by 8.
x=\frac{22}{8}
Dividing by 8 undoes the multiplication by 8.
x=\frac{11}{4}
Reduce the fraction \frac{22}{8} to lowest terms by extracting and canceling out 2.
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