x+3x+-7=29

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Solution for x+3x+-7=29 equation: 


Simplifying
x + 3x + -7 = 29

Reorder the terms:
-7 + x + 3x = 29

Combine like terms: x + 3x = 4x
-7 + 4x = 29

Solving
-7 + 4x = 29

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 4x = 29 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 29 + 7
4x = 29 + 7

Combine like terms: 29 + 7 = 36
4x = 36

Divide each side by '4'.
x = 9

Simplifying
x = 9

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