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\left(x+3\right)\times 5=x-1
Variable x cannot be equal to any of the values -3,1 since division by zero is not defined. Multiply both sides of the equation by \left(x-1\right)\left(x+3\right), the least common multiple of x-1,x+3.
5x+15=x-1
Use the distributive property to multiply x+3 by 5.
5x+15-x=-1
Subtract x from both sides.
4x+15=-1
Combine 5x and -x to get 4x.
4x=-1-15
Subtract 15 from both sides.
4x=-16
Subtract 15 from -1 to get -16.
x=\frac{-16}{4}
Divide both sides by 4.
x=-4
Divide -16 by 4 to get -4.