x+2(2x+3)=31

Solution for x+2(2x+3)=31 equation:

Simplifying
x + 2(2x + 3) = 31

Reorder the terms:
x + 2(3 + 2x) = 31
x + (3 * 2 + 2x * 2) = 31
x + (6 + 4x) = 31

Reorder the terms:
6 + x + 4x = 31

Combine like terms: x + 4x = 5x
6 + 5x = 31

Solving
6 + 5x = 31

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 5x = 31 + -6

Combine like terms: 6 + -6 = 0
0 + 5x = 31 + -6
5x = 31 + -6

Combine like terms: 31 + -6 = 25
5x = 25

Divide each side by '5'.
x = 5

Simplifying
x = 5