.6=.3+x-.15

Solution for .6=.3+x-.15 equation:

Simplifying
0.6 = 0.3 + x + -0.15

Reorder the terms:
0.6 = 0.3 + -0.15 + x

Combine like terms: 0.3 + -0.15 = 0.15
0.6 = 0.15 + x

Solving
0.6 = 0.15 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
0.6 + -1x = 0.15 + x + -1x

Combine like terms: x + -1x = 0
0.6 + -1x = 0.15 + 0
0.6 + -1x = 0.15

Add '-0.6' to each side of the equation.
0.6 + -0.6 + -1x = 0.15 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + -1x = 0.15 + -0.6
-1x = 0.15 + -0.6

Combine like terms: 0.15 + -0.6 = -0.45
-1x = -0.45

Divide each side by '-1'.
x = 0.45

Simplifying
x = 0.45