Solve for x
x=20
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x+2x+6x=180
Multiply both sides of the equation by 2.
3x+6x=180
Combine x and 2x to get 3x.
9x=180
Combine 3x and 6x to get 9x.
x=\frac{180}{9}
Divide both sides by 9.
x=20
Divide 180 by 9 to get 20.
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