0.3+0.3(20)=0.1(x+30)

Solution for 0.3+0.3(20)=0.1(x+30) equation:

Simplifying
0.3 + 0.3(20) = 0.1(x + 30)

Multiply 0.3 * 20
0.3 + 6 = 0.1(x + 30)

Combine like terms: 0.3 + 6 = 6.3
6.3 = 0.1(x + 30)

Reorder the terms:
6.3 = 0.1(30 + x)
6.3 = (30 * 0.1 + x * 0.1)
6.3 = (3 + 0.1x)

Solving
6.3 = 3 + 0.1x

Solving for variable 'x'.

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

Add '-0.1x' to each side of the equation.
6.3 + -0.1x = 3 + 0.1x + -0.1x

Combine like terms: 0.1x + -0.1x = 0.0
6.3 + -0.1x = 3 + 0.0
6.3 + -0.1x = 3

Add '-6.3' to each side of the equation.
6.3 + -6.3 + -0.1x = 3 + -6.3

Combine like terms: 6.3 + -6.3 = 0.0
0.0 + -0.1x = 3 + -6.3
-0.1x = 3 + -6.3

Combine like terms: 3 + -6.3 = -3.3
-0.1x = -3.3

Divide each side by '-0.1'.
x = 33

Simplifying
x = 33