4=-9-x

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Solution for 4=-9-x equation: 


Simplifying
4 = -9 + -1x

Solving
4 = -9 + -1x

Solving for variable 'x'.

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

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

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

Add '-4' to each side of the equation.
4 + -4 + x = -9 + -4

Combine like terms: 4 + -4 = 0
0 + x = -9 + -4
x = -9 + -4

Combine like terms: -9 + -4 = -13
x = -13

Simplifying
x = -13

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