.3=x-140

Solution for .3=x-140 equation:

Simplifying
0.3 = x + -140

Reorder the terms:
0.3 = -140 + x

Solving
0.3 = -140 + 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.
0.3 + -1x = -140 + x + -1x

Combine like terms: x + -1x = 0
0.3 + -1x = -140 + 0
0.3 + -1x = -140

Add '-0.3' to each side of the equation.
0.3 + -0.3 + -1x = -140 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + -1x = -140 + -0.3
-1x = -140 + -0.3

Combine like terms: -140 + -0.3 = -140.3
-1x = -140.3

Divide each side by '-1'.
x = 140.3

Simplifying
x = 140.3