x+2x+[x+3]=23

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Solution for x+2x+[x+3]=23 equation:


Simplifying
x + 2x + [x + 3] = 23

Reorder the terms:
x + 2x + [3 + x] = 23

Remove brackets around [3 + x]
x + 2x + 3 + x = 23

Reorder the terms:
3 + x + 2x + x = 23

Combine like terms: x + 2x = 3x
3 + 3x + x = 23

Combine like terms: 3x + x = 4x
3 + 4x = 23

Solving
3 + 4x = 23

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 4x = 23 + -3

Combine like terms: 3 + -3 = 0
0 + 4x = 23 + -3
4x = 23 + -3

Combine like terms: 23 + -3 = 20
4x = 20

Divide each side by '4'.
x = 5

Simplifying
x = 5

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