1-5x-4x=80

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Solution for 1-5x-4x=80 equation: 


Simplifying
1 + -5x + -4x = 80

Combine like terms: -5x + -4x = -9x
1 + -9x = 80

Solving
1 + -9x = 80

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + -9x = 80 + -1

Combine like terms: 1 + -1 = 0
0 + -9x = 80 + -1
-9x = 80 + -1

Combine like terms: 80 + -1 = 79
-9x = 79

Divide each side by '-9'.
x = -8.777777778

Simplifying
x = -8.777777778

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