4X+3+9X=393

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Solution for 4X+3+9X=393 equation:


Simplifying
4X + 3 + 9X = 393

Reorder the terms:
3 + 4X + 9X = 393

Combine like terms: 4X + 9X = 13X
3 + 13X = 393

Solving
3 + 13X = 393

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 + 13X = 393 + -3

Combine like terms: 3 + -3 = 0
0 + 13X = 393 + -3
13X = 393 + -3

Combine like terms: 393 + -3 = 390
13X = 390

Divide each side by '13'.
X = 30

Simplifying
X = 30

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