3x+(x+4)=16

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Solution for 3x+(x+4)=16 equation:


Simplifying
3x + (x + 4) = 16

Reorder the terms:
3x + (4 + x) = 16

Remove parenthesis around (4 + x)
3x + 4 + x = 16

Reorder the terms:
4 + 3x + x = 16

Combine like terms: 3x + x = 4x
4 + 4x = 16

Solving
4 + 4x = 16

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 + 4x = 16 + -4

Combine like terms: 4 + -4 = 0
0 + 4x = 16 + -4
4x = 16 + -4

Combine like terms: 16 + -4 = 12
4x = 12

Divide each side by '4'.
x = 3

Simplifying
x = 3

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