3(0.3)+(-1)(1-0.3)=x

Solution for 3(0.3)+(-1)(1-0.3)=x equation:

Simplifying
3(0.3) + (-1)(1 + -0.3) = x

Multiply 3 * 0.3
0.9 + (-1)(1 + -0.3) = x

Combine like terms: 1 + -0.3 = 0.7
0.9 + -1(0.7) = x

Multiply -1 * 0.7
0.9 + -0.7 = x

Combine like terms: 0.9 + -0.7 = 0.2
0.2 = x

Solving
0.2 = 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.
0.2 + -1x = x + -1x

Combine like terms: x + -1x = 0
0.2 + -1x = 0

Add '-0.2' to each side of the equation.
0.2 + -0.2 + -1x = 0 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + -1x = 0 + -0.2
-1x = 0 + -0.2

Combine like terms: 0 + -0.2 = -0.2
-1x = -0.2

Divide each side by '-1'.
x = 0.2

Simplifying
x = 0.2