Solve for x
x = \frac{90}{7} = 12\frac{6}{7} \approx 12.857142857
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12x-18=5x+72
Multiply both sides of the equation by 6.
12x-18-5x=72
Subtract 5x from both sides.
7x-18=72
Combine 12x and -5x to get 7x.
7x=72+18
Add 18 to both sides.
7x=90
Add 72 and 18 to get 90.
x=\frac{90}{7}
Divide both sides by 7.
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