3x+x-6=30

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Solution for 3x+x-6=30 equation: 


Simplifying
3x + x + -6 = 30

Reorder the terms:
-6 + 3x + x = 30

Combine like terms: 3x + x = 4x
-6 + 4x = 30

Solving
-6 + 4x = 30

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 4x = 30 + 6

Combine like terms: -6 + 6 = 0
0 + 4x = 30 + 6
4x = 30 + 6

Combine like terms: 30 + 6 = 36
4x = 36

Divide each side by '4'.
x = 9

Simplifying
x = 9

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