.3+0.5(3+x)=

Solution for .3+0.5(3+x)= equation:

Simplifying
0.3 + 0.5(3 + x) = 0
0.3 + (3 * 0.5 + x * 0.5) = 0
0.3 + (1.5 + 0.5x) = 0

Combine like terms: 0.3 + 1.5 = 1.8
1.8 + 0.5x = 0

Solving
1.8 + 0.5x = 0

Solving for variable 'x'.

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

Add '-1.8' to each side of the equation.
1.8 + -1.8 + 0.5x = 0 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + 0.5x = 0 + -1.8
0.5x = 0 + -1.8

Combine like terms: 0 + -1.8 = -1.8
0.5x = -1.8

Divide each side by '0.5'.
x = -3.6

Simplifying
x = -3.6