x+2x+x+1=13

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


Simplifying
x + 2x + x + 1 = 13

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

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

Combine like terms: 3x + x = 4x
1 + 4x = 13

Solving
1 + 4x = 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 + 4x = 13 + -1

Combine like terms: 1 + -1 = 0
0 + 4x = 13 + -1
4x = 13 + -1

Combine like terms: 13 + -1 = 12
4x = 12

Divide each side by '4'.
x = 3

Simplifying
x = 3

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