It is known that the solution of the equation 1 / 2x = - 2 about X is 2 smaller than that of the equation 5x-2a = 0 about X. try to solve the equation 1 / ay-15 = 0 about y

It is known that the solution of the equation 1 / 2x = - 2 about X is 2 smaller than that of the equation 5x-2a = 0 about X. try to solve the equation 1 / ay-15 = 0 about y

1/2x=-2
x=-4
5x-2a=0
x=2a/5
According to the equation about X, the solution of 1 / 2x = - 2 is 2 less than the solution of the equation about X 5x-2a = 0
2a/5-(-4)=2
a=-5
1/5y-15=0
Y = 75 will not be able to ask, understand to give a recommended answer Oh, I wish learning progress