2x+x+21+x=125

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Solution for 2x+x+21+x=125 equation:


Simplifying
2x + x + 21 + x = 125

Reorder the terms:
21 + 2x + x + x = 125

Combine like terms: 2x + x = 3x
21 + 3x + x = 125

Combine like terms: 3x + x = 4x
21 + 4x = 125

Solving
21 + 4x = 125

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 4x = 125 + -21

Combine like terms: 21 + -21 = 0
0 + 4x = 125 + -21
4x = 125 + -21

Combine like terms: 125 + -21 = 104
4x = 104

Divide each side by '4'.
x = 26

Simplifying
x = 26

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