Solve for x
x = \frac{16}{9} = 1\frac{7}{9} \approx 1.777777778
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12x-7+x=4x+9
Multiply both sides of the equation by 6.
13x-7=4x+9
Combine 12x and x to get 13x.
13x-7-4x=9
Subtract 4x from both sides.
9x-7=9
Combine 13x and -4x to get 9x.
9x=9+7
Add 7 to both sides.
9x=16
Add 9 and 7 to get 16.
x=\frac{16}{9}
Divide both sides by 9.
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