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9\left(x-1\right)-\left(x-5\right)=4\left(x+5\right)
Multiply both sides of the equation by 36, the least common multiple of 4,36,9.
9x-9-\left(x-5\right)=4\left(x+5\right)
Use the distributive property to multiply 9 by x-1.
9x-9-x-\left(-5\right)=4\left(x+5\right)
To find the opposite of x-5, find the opposite of each term.
9x-9-x+5=4\left(x+5\right)
The opposite of -5 is 5.
8x-9+5=4\left(x+5\right)
Combine 9x and -x to get 8x.
8x-4=4\left(x+5\right)
Add -9 and 5 to get -4.
8x-4=4x+20
Use the distributive property to multiply 4 by x+5.
8x-4-4x=20
Subtract 4x from both sides.
4x-4=20
Combine 8x and -4x to get 4x.
4x=20+4
Add 4 to both sides.
4x=24
Add 20 and 4 to get 24.
x=\frac{24}{4}
Divide both sides by 4.
x=6
Divide 24 by 4 to get 6.