(X-10)+(x-2)=90

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Solution for (X-10)+(x-2)=90 equation:


Simplifying
(X + -10) + (x + -2) = 90

Reorder the terms:
(-10 + X) + (x + -2) = 90

Remove parenthesis around (-10 + X)
-10 + X + (x + -2) = 90

Reorder the terms:
-10 + X + (-2 + x) = 90

Remove parenthesis around (-2 + x)
-10 + X + -2 + x = 90

Reorder the terms:
-10 + -2 + X + x = 90

Combine like terms: -10 + -2 = -12
-12 + X + x = 90

Solving
-12 + X + x = 90

Solving for variable 'X'.

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

Add '12' to each side of the equation.
-12 + X + 12 + x = 90 + 12

Reorder the terms:
-12 + 12 + X + x = 90 + 12

Combine like terms: -12 + 12 = 0
0 + X + x = 90 + 12
X + x = 90 + 12

Combine like terms: 90 + 12 = 102
X + x = 102

Add '-1x' to each side of the equation.
X + x + -1x = 102 + -1x

Combine like terms: x + -1x = 0
X + 0 = 102 + -1x
X = 102 + -1x

Simplifying
X = 102 + -1x

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