X-7=(-9)

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Solution for X-7=(-9) equation: 


Simplifying
X + -7 = (-9)

Reorder the terms:
-7 + X = (-9)
-7 + X = -9

Solving
-7 + X = -9

Solving for variable 'X'.

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

Add '7' to each side of the equation.
-7 + 7 + X = -9 + 7

Combine like terms: -7 + 7 = 0
0 + X = -9 + 7
X = -9 + 7

Combine like terms: -9 + 7 = -2
X = -2

Simplifying
X = -2

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