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 = -81
-9x = -81

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

Simplifying
x = 9

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