x+2x+x+6=45

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Solution for x+2x+x+6=45 equation:


Simplifying
x + 2x + x + 6 = 45

Reorder the terms:
6 + x + 2x + x = 45

Combine like terms: x + 2x = 3x
6 + 3x + x = 45

Combine like terms: 3x + x = 4x
6 + 4x = 45

Solving
6 + 4x = 45

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 4x = 45 + -6

Combine like terms: 6 + -6 = 0
0 + 4x = 45 + -6
4x = 45 + -6

Combine like terms: 45 + -6 = 39
4x = 39

Divide each side by '4'.
x = 9.75

Simplifying
x = 9.75

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