80-6x=9x+20

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Solution for 80-6x=9x+20 equation:


Simplifying
80 + -6x = 9x + 20

Reorder the terms:
80 + -6x = 20 + 9x

Solving
80 + -6x = 20 + 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.
80 + -6x + -9x = 20 + 9x + -9x

Combine like terms: -6x + -9x = -15x
80 + -15x = 20 + 9x + -9x

Combine like terms: 9x + -9x = 0
80 + -15x = 20 + 0
80 + -15x = 20

Add '-80' to each side of the equation.
80 + -80 + -15x = 20 + -80

Combine like terms: 80 + -80 = 0
0 + -15x = 20 + -80
-15x = 20 + -80

Combine like terms: 20 + -80 = -60
-15x = -60

Divide each side by '-15'.
x = 4

Simplifying
x = 4

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