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2x-5=\left(x+1\right)\times 3
Variable x cannot be equal to any of the values -1,4 since division by zero is not defined. Multiply both sides of the equation by \left(x-4\right)\left(x+1\right), the least common multiple of x^{2}-3x-4,x-4.
2x-5=3x+3
Use the distributive property to multiply x+1 by 3.
2x-5-3x=3
Subtract 3x from both sides.
-x-5=3
Combine 2x and -3x to get -x.
-x=3+5
Add 5 to both sides.
-x=8
Add 3 and 5 to get 8.
x=-8
Multiply both sides by -1.