9-x-4x=20+(-9)

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Solution for 9-x-4x=20+(-9) equation:


Simplifying
9 + -1x + -4x = 20 + (-9)

Combine like terms: -1x + -4x = -5x
9 + -5x = 20 + (-9)
9 + -5x = 20 + -9

Combine like terms: 20 + -9 = 11
9 + -5x = 11

Solving
9 + -5x = 11

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 + -5x = 11 + -9

Combine like terms: 9 + -9 = 0
0 + -5x = 11 + -9
-5x = 11 + -9

Combine like terms: 11 + -9 = 2
-5x = 2

Divide each side by '-5'.
x = -0.4

Simplifying
x = -0.4

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