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\left(x-1\right)\times 14=\left(x-2\right)\times 7
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-2,x-1.
14x-14=\left(x-2\right)\times 7
Use the distributive property to multiply x-1 by 14.
14x-14=7x-14
Use the distributive property to multiply x-2 by 7.
14x-14-7x=-14
Subtract 7x from both sides.
7x-14=-14
Combine 14x and -7x to get 7x.
7x=-14+14
Add 14 to both sides.
7x=0
Add -14 and 14 to get 0.
x=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 7 is not equal to 0, x must be equal to 0.