5.1(x+3)=20.4

Solution for 5.1(x+3)=20.4 equation:

Simplifying
5.1(x + 3) = 20.4

Reorder the terms:
5.1(3 + x) = 20.4
(3 * 5.1 + x * 5.1) = 20.4
(15.3 + 5.1x) = 20.4

Solving
15.3 + 5.1x = 20.4

Solving for variable 'x'.

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

Add '-15.3' to each side of the equation.
15.3 + -15.3 + 5.1x = 20.4 + -15.3

Combine like terms: 15.3 + -15.3 = 0.0
0.0 + 5.1x = 20.4 + -15.3
5.1x = 20.4 + -15.3

Combine like terms: 20.4 + -15.3 = 5.1
5.1x = 5.1

Divide each side by '5.1'.
x = 1

Simplifying
x = 1