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-\left(x-2\right)\times 2+\left(x+1\right)\times 3=5
Variable x cannot be equal to any of the values -1,2 since division by zero is not defined. Multiply both sides of the equation by \left(x-2\right)\left(x+1\right), the least common multiple of x+1,x-2,x^{2}-x-2.
-\left(2x-4\right)+\left(x+1\right)\times 3=5
Use the distributive property to multiply x-2 by 2.
-2x+4+\left(x+1\right)\times 3=5
To find the opposite of 2x-4, find the opposite of each term.
-2x+4+3x+3=5
Use the distributive property to multiply x+1 by 3.
x+4+3=5
Combine -2x and 3x to get x.
x+7=5
Add 4 and 3 to get 7.
x=5-7
Subtract 7 from both sides.
x=-2
Subtract 7 from 5 to get -2.