(X+40)+x=90

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Solution for (X+40)+x=90 equation:


Simplifying
(X + 40) + x = 90

Reorder the terms:
(40 + X) + x = 90

Remove parenthesis around (40 + X)
40 + X + x = 90

Solving
40 + X + x = 90

Solving for variable 'X'.

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

Add '-40' to each side of the equation.
40 + X + -40 + x = 90 + -40

Reorder the terms:
40 + -40 + X + x = 90 + -40

Combine like terms: 40 + -40 = 0
0 + X + x = 90 + -40
X + x = 90 + -40

Combine like terms: 90 + -40 = 50
X + x = 50

Add '-1x' to each side of the equation.
X + x + -1x = 50 + -1x

Combine like terms: x + -1x = 0
X + 0 = 50 + -1x
X = 50 + -1x

Simplifying
X = 50 + -1x

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