3x+(x+3)=39

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Solution for 3x+(x+3)=39 equation:


Simplifying
3x + (x + 3) = 39

Reorder the terms:
3x + (3 + x) = 39

Remove parenthesis around (3 + x)
3x + 3 + x = 39

Reorder the terms:
3 + 3x + x = 39

Combine like terms: 3x + x = 4x
3 + 4x = 39

Solving
3 + 4x = 39

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 4x = 39 + -3

Combine like terms: 3 + -3 = 0
0 + 4x = 39 + -3
4x = 39 + -3

Combine like terms: 39 + -3 = 36
4x = 36

Divide each side by '4'.
x = 9

Simplifying
x = 9

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