Solve for x
x = \frac{19}{3} = 6\frac{1}{3} \approx 6.333333333
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2x+1+x+1=21
Combine x and x to get 2x.
3x+1+1=21
Combine 2x and x to get 3x.
3x+2=21
Add 1 and 1 to get 2.
3x=21-2
Subtract 2 from both sides.
3x=19
Subtract 2 from 21 to get 19.
x=\frac{19}{3}
Divide both sides by 3.
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