3(x+3)+x=13

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Solution for 3(x+3)+x=13 equation:


Simplifying
3(x + 3) + x = 13

Reorder the terms:
3(3 + x) + x = 13
(3 * 3 + x * 3) + x = 13
(9 + 3x) + x = 13

Combine like terms: 3x + x = 4x
9 + 4x = 13

Solving
9 + 4x = 13

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 4x = 13 + -9

Combine like terms: 9 + -9 = 0
0 + 4x = 13 + -9
4x = 13 + -9

Combine like terms: 13 + -9 = 4
4x = 4

Divide each side by '4'.
x = 1

Simplifying
x = 1

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