Solve for x
x=12
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5\times 4x-15=9\left(2x+1\right)
Multiply both sides of the equation by 45, the least common multiple of 9,3,5.
20x-15=9\left(2x+1\right)
Multiply 5 and 4 to get 20.
20x-15=18x+9
Use the distributive property to multiply 9 by 2x+1.
20x-15-18x=9
Subtract 18x from both sides.
2x-15=9
Combine 20x and -18x to get 2x.
2x=9+15
Add 15 to both sides.
2x=24
Add 9 and 15 to get 24.
x=\frac{24}{2}
Divide both sides by 2.
x=12
Divide 24 by 2 to get 12.
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