You forgot to include the equation. Just replace y with 5, every time it occurs, then solve the remaining equation for x.
1
It is an equation and the value of m is -6
It is an equation and the value of x is 1.5
It is an equation and the value of t is 1
It is an equation and the value of x is 1.
1
It is an equation and the value of m is -6
It is an equation and the value of x is -5
It is an equation and the value of x is 1.5
It is an equation and the value of d is 2
It is an equation and the value of t is 1
x = 8
It is an equation and the value of m is -6
It is an equation and the value of x is 1.
x = 3.75
6!
It is negative 5.