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15x-3-2\left(2x+4\right)=2\left(3x+1\right)-\left(2x-5\right)
Use the distributive property to multiply 3 by 5x-1.
15x-3-4x-8=2\left(3x+1\right)-\left(2x-5\right)
Use the distributive property to multiply -2 by 2x+4.
11x-3-8=2\left(3x+1\right)-\left(2x-5\right)
Combine 15x and -4x to get 11x.
11x-11=2\left(3x+1\right)-\left(2x-5\right)
Subtract 8 from -3 to get -11.
11x-11=6x+2-\left(2x-5\right)
Use the distributive property to multiply 2 by 3x+1.
11x-11=6x+2-2x-\left(-5\right)
To find the opposite of 2x-5, find the opposite of each term.
11x-11=6x+2-2x+5
The opposite of -5 is 5.
11x-11=4x+2+5
Combine 6x and -2x to get 4x.
11x-11=4x+7
Add 2 and 5 to get 7.
11x-11-4x=7
Subtract 4x from both sides.
7x-11=7
Combine 11x and -4x to get 7x.
7x=7+11
Add 11 to both sides.
7x=18
Add 7 and 11 to get 18.
x=\frac{18}{7}
Divide both sides by 7.