0.3+1.8=(x+5)-0.2

Solution for 0.3+1.8=(x+5)-0.2 equation:

Simplifying
0.3 + 1.8 = (x + 5) + -0.2

Combine like terms: 0.3 + 1.8 = 2.1
2.1 = (x + 5) + -0.2

Reorder the terms:
2.1 = (5 + x) + -0.2

Remove parenthesis around (5 + x)
2.1 = 5 + x + -0.2

Reorder the terms:
2.1 = 5 + -0.2 + x

Combine like terms: 5 + -0.2 = 4.8
2.1 = 4.8 + x

Solving
2.1 = 4.8 + 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.
2.1 + -1x = 4.8 + x + -1x

Combine like terms: x + -1x = 0
2.1 + -1x = 4.8 + 0
2.1 + -1x = 4.8

Add '-2.1' to each side of the equation.
2.1 + -2.1 + -1x = 4.8 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + -1x = 4.8 + -2.1
-1x = 4.8 + -2.1

Combine like terms: 4.8 + -2.1 = 2.7
-1x = 2.7

Divide each side by '-1'.
x = -2.7

Simplifying
x = -2.7