Let's solve for x
y=-1.4x-1
Flip the equation
-1.4x-1=y
Add 1 to both sides
-1.4x-1+1=y+1
-1.4x=y+1
Divide both sides by -1.4
-1.4/-1.4=y+1/-1.4
x=-0.714286y-0.714286
I hope that's help !
