8y-0.1=9y

Solution for 8y-0.1=9y equation:

Simplifying
8y + -0.1 = 9y

Reorder the terms:
-0.1 + 8y = 9y

Solving
-0.1 + 8y = 9y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-9y' to each side of the equation.
-0.1 + 8y + -9y = 9y + -9y

Combine like terms: 8y + -9y = -1y
-0.1 + -1y = 9y + -9y

Combine like terms: 9y + -9y = 0
-0.1 + -1y = 0

Add '0.1' to each side of the equation.
-0.1 + 0.1 + -1y = 0 + 0.1

Combine like terms: -0.1 + 0.1 = 0.0
0.0 + -1y = 0 + 0.1
-1y = 0 + 0.1

Combine like terms: 0 + 0.1 = 0.1
-1y = 0.1

Divide each side by '-1'.
y = -0.1

Simplifying
y = -0.1