(X-9)-(x-7)=0

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Solution for (X-9)-(x-7)=0 equation:


Simplifying
(X + -9) + -1(x + -7) = 0

Reorder the terms:
(-9 + X) + -1(x + -7) = 0

Remove parenthesis around (-9 + X)
-9 + X + -1(x + -7) = 0

Reorder the terms:
-9 + X + -1(-7 + x) = 0
-9 + X + (-7 * -1 + x * -1) = 0
-9 + X + (7 + -1x) = 0

Reorder the terms:
-9 + 7 + X + -1x = 0

Combine like terms: -9 + 7 = -2
-2 + X + -1x = 0

Solving
-2 + X + -1x = 0

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 + X + 2 + -1x = 0 + 2

Reorder the terms:
-2 + 2 + X + -1x = 0 + 2

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

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

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

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

Simplifying
X = 2 + x

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