12.15=1.9x+3.6

Solution for 12.15=1.9x+3.6 equation:

Simplifying
12.15 = 1.9x + 3.6

Reorder the terms:
12.15 = 3.6 + 1.9x

Solving
12.15 = 3.6 + 1.9x

Solving for variable 'x'.

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

Add '-1.9x' to each side of the equation.
12.15 + -1.9x = 3.6 + 1.9x + -1.9x

Combine like terms: 1.9x + -1.9x = 0.0
12.15 + -1.9x = 3.6 + 0.0
12.15 + -1.9x = 3.6

Add '-12.15' to each side of the equation.
12.15 + -12.15 + -1.9x = 3.6 + -12.15

Combine like terms: 12.15 + -12.15 = 0.00
0.00 + -1.9x = 3.6 + -12.15
-1.9x = 3.6 + -12.15

Combine like terms: 3.6 + -12.15 = -8.55
-1.9x = -8.55

Divide each side by '-1.9'.
x = 4.5

Simplifying
x = 4.5