3+x=-9+8

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Solution for 3+x=-9+8 equation: 


Simplifying
3 + x = -9 + 8

Combine like terms: -9 + 8 = -1
3 + x = -1

Solving
3 + x = -1

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + x = -1 + -3

Combine like terms: 3 + -3 = 0
0 + x = -1 + -3
x = -1 + -3

Combine like terms: -1 + -3 = -4
x = -4

Simplifying
x = -4

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