2(x+5)+(x+5)+x=31

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Solution for 2(x+5)+(x+5)+x=31 equation: 


Simplifying
2(x + 5) + (x + 5) + x = 31

Reorder the terms:
2(5 + x) + (x + 5) + x = 31
(5 * 2 + x * 2) + (x + 5) + x = 31
(10 + 2x) + (x + 5) + x = 31

Reorder the terms:
10 + 2x + (5 + x) + x = 31

Remove parenthesis around (5 + x)
10 + 2x + 5 + x + x = 31

Reorder the terms:
10 + 5 + 2x + x + x = 31

Combine like terms: 10 + 5 = 15
15 + 2x + x + x = 31

Combine like terms: 2x + x = 3x
15 + 3x + x = 31

Combine like terms: 3x + x = 4x
15 + 4x = 31

Solving
15 + 4x = 31

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 4x = 31 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 31 + -15
4x = 31 + -15

Combine like terms: 31 + -15 = 16
4x = 16

Divide each side by '4'.
x = 4

Simplifying
x = 4

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