9=X-4

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Solution for 9=X-4 equation:


Simplifying
9 = X + -4

Reorder the terms:
9 = -4 + X

Solving
9 = -4 + 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.
9 + -1X = -4 + X + -1X

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

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

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

Combine like terms: -4 + -9 = -13
-1X = -13

Divide each side by '-1'.
X = 13

Simplifying
X = 13

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