-5x-4x-9=81

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Solution for -5x-4x-9=81 equation:


Simplifying
-5x + -4x + -9 = 81

Reorder the terms:
-9 + -5x + -4x = 81

Combine like terms: -5x + -4x = -9x
-9 + -9x = 81

Solving
-9 + -9x = 81

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -9x = 81 + 9

Combine like terms: -9 + 9 = 0
0 + -9x = 81 + 9
-9x = 81 + 9

Combine like terms: 81 + 9 = 90
-9x = 90

Divide each side by '-9'.
x = -10

Simplifying
x = -10

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