3x-13=9x+8

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Solution for 3x-13=9x+8 equation:


Simplifying
3x + -13 = 9x + 8

Reorder the terms:
-13 + 3x = 9x + 8

Reorder the terms:
-13 + 3x = 8 + 9x

Solving
-13 + 3x = 8 + 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.
-13 + 3x + -9x = 8 + 9x + -9x

Combine like terms: 3x + -9x = -6x
-13 + -6x = 8 + 9x + -9x

Combine like terms: 9x + -9x = 0
-13 + -6x = 8 + 0
-13 + -6x = 8

Add '13' to each side of the equation.
-13 + 13 + -6x = 8 + 13

Combine like terms: -13 + 13 = 0
0 + -6x = 8 + 13
-6x = 8 + 13

Combine like terms: 8 + 13 = 21
-6x = 21

Divide each side by '-6'.
x = -3.5

Simplifying
x = -3.5

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