Solve for x
x=21
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9x-13+4=180
Combine 5x and 4x to get 9x.
9x-9=180
Add -13 and 4 to get -9.
9x=180+9
Add 9 to both sides.
9x=189
Add 180 and 9 to get 189.
x=\frac{189}{9}
Divide both sides by 9.
x=21
Divide 189 by 9 to get 21.
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