Solve for x
x=\frac{2}{3}\approx 0.666666667
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4+x+2x=6
Add 2x to both sides.
4+3x=6
Combine x and 2x to get 3x.
3x=6-4
Subtract 4 from both sides.
3x=2
Subtract 4 from 6 to get 2.
x=\frac{2}{3}
Divide both sides by 3.
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