(3x+8)+x=312

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Solution for (3x+8)+x=312 equation:


Simplifying
(3x + 8) + x = 312

Reorder the terms:
(8 + 3x) + x = 312

Remove parenthesis around (8 + 3x)
8 + 3x + x = 312

Combine like terms: 3x + x = 4x
8 + 4x = 312

Solving
8 + 4x = 312

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 4x = 312 + -8

Combine like terms: 8 + -8 = 0
0 + 4x = 312 + -8
4x = 312 + -8

Combine like terms: 312 + -8 = 304
4x = 304

Divide each side by '4'.
x = 76

Simplifying
x = 76

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