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21x-14=1x+1
Multiply both sides of the equation by 7.
21x-14-x=1
Subtract 1x from both sides.
20x-14=1
Combine 21x and -x to get 20x.
20x=1+14
Add 14 to both sides.
20x=15
Add 1 and 14 to get 15.
x=\frac{15}{20}
Divide both sides by 20.
x=\frac{3}{4}
Reduce the fraction \frac{15}{20} to lowest terms by extracting and canceling out 5.