9-X-7=4

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Solution for 9-X-7=4 equation: 


Simplifying
9 + -1X + -7 = 4

Reorder the terms:
9 + -7 + -1X = 4

Combine like terms: 9 + -7 = 2
2 + -1X = 4

Solving
2 + -1X = 4

Solving for variable 'X'.

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

Add '-2' to each side of the equation.
2 + -2 + -1X = 4 + -2

Combine like terms: 2 + -2 = 0
0 + -1X = 4 + -2
-1X = 4 + -2

Combine like terms: 4 + -2 = 2
-1X = 2

Divide each side by '-1'.
X = -2

Simplifying
X = -2

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