3X-9+X+3X-9+X=38

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Solution for 3X-9+X+3X-9+X=38 equation: 


Simplifying
3X + -9 + X + 3X + -9 + X = 38

Reorder the terms:
-9 + -9 + 3X + X + 3X + X = 38

Combine like terms: -9 + -9 = -18
-18 + 3X + X + 3X + X = 38

Combine like terms: 3X + X = 4X
-18 + 4X + 3X + X = 38

Combine like terms: 4X + 3X = 7X
-18 + 7X + X = 38

Combine like terms: 7X + X = 8X
-18 + 8X = 38

Solving
-18 + 8X = 38

Solving for variable 'X'.

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

Add '18' to each side of the equation.
-18 + 18 + 8X = 38 + 18

Combine like terms: -18 + 18 = 0
0 + 8X = 38 + 18
8X = 38 + 18

Combine like terms: 38 + 18 = 56
8X = 56

Divide each side by '8'.
X = 7

Simplifying
X = 7

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