Solve for x
x=4
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2x+x+x=16
Combine x and x to get 2x.
3x+x=16
Combine 2x and x to get 3x.
4x=16
Combine 3x and x to get 4x.
x=\frac{16}{4}
Divide both sides by 4.
x=4
Divide 16 by 4 to get 4.
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