3x+4+6x=31

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Solution for 3x+4+6x=31 equation: 


Simplifying
3x + 4 + 6x = 31

Reorder the terms:
4 + 3x + 6x = 31

Combine like terms: 3x + 6x = 9x
4 + 9x = 31

Solving
4 + 9x = 31

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 9x = 31 + -4

Combine like terms: 4 + -4 = 0
0 + 9x = 31 + -4
9x = 31 + -4

Combine like terms: 31 + -4 = 27
9x = 27

Divide each side by '9'.
x = 3

Simplifying
x = 3

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