Question

20ax - x= 5 in the equation above, a is a constant if the equation has no solution, what is the value of a ?

Answer 1

To solve the equation 20ax - x = 5, we can factor out x from the left side of the equation:

20ax - x = 5
x(20a - 1) = 5

For this equation to have no solution, the left side of the equation must be equal to 0 (since any number multiplied by 0 is 0). Therefore, we can set the expression inside the parentheses equal to 0 and solve for a:

20a - 1 = 0
20a = 1
a = 1/20

So if the equation 20ax - x = 5 has no solution, then the value of a is 1/20.