Question

by what number should (_6)—1 be multiplied so that the product becomes 9—1​

Answer 1

x(6)-1 = 9-1

x(6) = 9-1+1

x(6) = 9

x = 9/6 = 3/2

To prove

3/2(6)-1= 9-1

3(3)-1 = 9-1

9-1 = 9-1

Hence, proved