3x+4=9x+13

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


Simplifying
3x + 4 = 9x + 13

Reorder the terms:
4 + 3x = 9x + 13

Reorder the terms:
4 + 3x = 13 + 9x

Solving
4 + 3x = 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.
4 + 3x + -9x = 13 + 9x + -9x

Combine like terms: 3x + -9x = -6x
4 + -6x = 13 + 9x + -9x

Combine like terms: 9x + -9x = 0
4 + -6x = 13 + 0
4 + -6x = 13

Add '-4' to each side of the equation.
4 + -4 + -6x = 13 + -4

Combine like terms: 4 + -4 = 0
0 + -6x = 13 + -4
-6x = 13 + -4

Combine like terms: 13 + -4 = 9
-6x = 9

Divide each side by '-6'.
x = -1.5

Simplifying
x = -1.5

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