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50x-5\left(x-1\right)=20-2\left(x+2\right)
Multiply both sides of the equation by 10, the least common multiple of 2,5.
50x-5x+5=20-2\left(x+2\right)
Use the distributive property to multiply -5 by x-1.
45x+5=20-2\left(x+2\right)
Combine 50x and -5x to get 45x.
45x+5=20-2x-4
Use the distributive property to multiply -2 by x+2.
45x+5=16-2x
Subtract 4 from 20 to get 16.
45x+5+2x=16
Add 2x to both sides.
47x+5=16
Combine 45x and 2x to get 47x.
47x=16-5
Subtract 5 from both sides.
47x=11
Subtract 5 from 16 to get 11.
x=\frac{11}{47}
Divide both sides by 47.