2x+x+1=13

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Solution for 2x+x+1=13 equation: 


Simplifying
2x + x + 1 = 13

Reorder the terms:
1 + 2x + x = 13

Combine like terms: 2x + x = 3x
1 + 3x = 13

Solving
1 + 3x = 13

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 3x = 13 + -1

Combine like terms: 1 + -1 = 0
0 + 3x = 13 + -1
3x = 13 + -1

Combine like terms: 13 + -1 = 12
3x = 12

Divide each side by '3'.
x = 4

Simplifying
x = 4

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