x+x+2+x+2*9=251

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Solution for x+x+2+x+2*9=251 equation:


Simplifying
x + x + 2 + x + 2 * 9 = 251

Multiply 2 * 9
x + x + 2 + x + 18 = 251

Reorder the terms:
2 + 18 + x + x + x = 251

Combine like terms: 2 + 18 = 20
20 + x + x + x = 251

Combine like terms: x + x = 2x
20 + 2x + x = 251

Combine like terms: 2x + x = 3x
20 + 3x = 251

Solving
20 + 3x = 251

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 3x = 251 + -20

Combine like terms: 20 + -20 = 0
0 + 3x = 251 + -20
3x = 251 + -20

Combine like terms: 251 + -20 = 231
3x = 231

Divide each side by '3'.
x = 77

Simplifying
x = 77

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