80=4x+8x

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Solution for 80=4x+8x equation:


Simplifying
80 = 4x + 8x

Combine like terms: 4x + 8x = 12x
80 = 12x

Solving
80 = 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
80 + -12x = 12x + -12x

Combine like terms: 12x + -12x = 0
80 + -12x = 0

Add '-80' to each side of the equation.
80 + -80 + -12x = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -12x = 0 + -80
-12x = 0 + -80

Combine like terms: 0 + -80 = -80
-12x = -80

Divide each side by '-12'.
x = 6.666666667

Simplifying
x = 6.666666667

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