Solve for x
x=1
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5x+4+7x=16
Add 7x to both sides.
12x+4=16
Combine 5x and 7x to get 12x.
12x=16-4
Subtract 4 from both sides.
12x=12
Subtract 4 from 16 to get 12.
x=\frac{12}{12}
Divide both sides by 12.
x=1
Divide 12 by 12 to get 1.
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