12*.90x+300=y

Solution for 12*.90x+300=y equation:

Simplifying
12 * 0.90x + 300 = y

Multiply 12 * 0.90
10.8x + 300 = y

Reorder the terms:
300 + 10.8x = y

Solving
300 + 10.8x = y

Solving for variable 'x'.

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

Add '-300' to each side of the equation.
300 + -300 + 10.8x = -300 + y

Combine like terms: 300 + -300 = 0
0 + 10.8x = -300 + y
10.8x = -300 + y

Divide each side by '10.8'.
x = -27.77777778 + 0.09259259259y

Simplifying
x = -27.77777778 + 0.09259259259y