-7-5=-9+x

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Solution for -7-5=-9+x equation: 


Simplifying
-7 + -5 = -9 + x

Combine like terms: -7 + -5 = -12
-12 = -9 + x

Solving
-12 = -9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-12 + -1x = -9 + x + -1x

Combine like terms: x + -1x = 0
-12 + -1x = -9 + 0
-12 + -1x = -9

Add '12' to each side of the equation.
-12 + 12 + -1x = -9 + 12

Combine like terms: -12 + 12 = 0
0 + -1x = -9 + 12
-1x = -9 + 12

Combine like terms: -9 + 12 = 3
-1x = 3

Divide each side by '-1'.
x = -3

Simplifying
x = -3

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