3x+4x=9x+13

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Solution for 3x+4x=9x+13 equation:


Simplifying
3x + 4x = 9x + 13

Combine like terms: 3x + 4x = 7x
7x = 9x + 13

Reorder the terms:
7x = 13 + 9x

Solving
7x = 13 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
7x + -9x = 13 + 9x + -9x

Combine like terms: 7x + -9x = -2x
-2x = 13 + 9x + -9x

Combine like terms: 9x + -9x = 0
-2x = 13 + 0
-2x = 13

Divide each side by '-2'.
x = -6.5

Simplifying
x = -6.5

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